Beat
Field Notes
Per-CVE writeups, vendor postmortems, exploitation timelines, and the rest of the operator's week.
Written by Colten Anderson.
Lead story
Field Note · Jul 8, 2026 · Colten Anderson
Turn on DNS scavenging without deleting records you still need
Windows DNS zones fill up with A and PTR records for servers you retired years ago.
More from this beat
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Field Note · Jul 8, 2026 · Colten Anderson
Find the service accounts nobody has rotated
The Commvault Metallic breach ended with CISA telling customers to rotate static application secrets.
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Field Note · Jul 7, 2026 · Colten Anderson
Two profiles, one setting: how to catch the MDM overlap that makes enforcement random
When two configuration profiles set the same value on one device, macOS and Intune stop enforcing it deterministically.
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Field Note · Jul 6, 2026 · Colten Anderson
Your break-glass account probably can't sign in anymore. Test it this quarter.
Mandatory Entra MFA now gates the admin portals for every account, break-glass included.
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Field Note · Jul 6, 2026 · Colten Anderson
Inventory your certificates before one expires in production
Most shops have no central list of their TLS and code-signing certs.
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Field Note · Jun 30, 2026 · Colten Anderson
The Security Update Broke Production: A Rollback Runbook
A step-by-step runbook for when a security patch takes down production: pause the rollout, scope the damage, decide roll-back vs fix-forward, and keep the rolled-back host from becoming a silent unpatched asset.
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Analysis · Jun 24, 2026 · Colten Anderson
Five edge and gateway bugs went under active attack in one week. Here is the patch order.
Ivanti Sentry, Splunk, FortiSandbox, Ubiquiti UniFi OS, and Cisco SD-WAN Manager were all under active exploitation in the same seven days.
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Field Note · Jun 22, 2026 · Colten Anderson
Commvault CVE-2025-34028: upgrading to 11.38.20 is not the whole fix
CVE-2025-34028 gives pre-auth RCE on Commvault Command Center.
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Analysis · Jun 21, 2026 · Colten Anderson
Arista EOS decapsulates tunnel traffic it was never configured for. No patch is planned.
CVE-2026-7473 lets attackers bypass VXLAN/GRE segmentation on Arista 7000R switches by sending mismatched tunnel protocols.
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Analysis · Jun 20, 2026 · Colten Anderson
ShinyHunters had 13 days inside PeopleSoft before Oracle said anything
CVE-2026-35273 is a CVSS 9.
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Analysis · Jun 8, 2026 · Colten Anderson
A crash got a federal patch deadline. Here's why that's the right call
CVE-2026-28318 is a 7.
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Field Note · Jun 5, 2026 · Colten Anderson
Three June 30 Microsoft 365 retirements that fail silently
A printer stops scanning to email, a conference-room keyboard's mute key dies, a town hall won't schedule.
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Field Note · Jun 5, 2026 · Colten Anderson
Promtail is end-of-life: your Loki shipper just lost its support floor
If Promtail still ships your logs to Loki, the agent reading every log file on the host has had no upstream remediation path since March 2, 2026.
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Field Note · Jun 5, 2026 · Colten Anderson
One cookie to your storefront homepage is shell. CVE-2026-45247 has a Saturday deadline.
An unauthenticated RCE in the Mirasvit Cache Warmer extension is already being hit at scale, and CISA's federal patch deadline is essentially now.
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Analysis · Jun 4, 2026 · Colten Anderson
The GlobalProtect bypass deadline already passed, but you might not be affected
CVE-2026-0257 is a GlobalProtect auth bypass with a KEV deadline that's come and gone.
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Analysis · Jun 2, 2026 · Colten Anderson
One CERT says it's exploited, Microsoft says it isn't, and you patch anyway
A pre-auth SYSTEM RCE on every domain controller doesn't need an exploitation rumor to earn the top of your patch queue.
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Field Note · May 29, 2026 · Colten Anderson
Enforcing and proving BitLocker TPM+PIN across an Intune fleet
Requiring a startup PIN is one toggle.
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Field Note · May 28, 2026 · Colten Anderson
NGINX Rift: four places apt upgrade doesn't reach
The host patch for CVE-2026-42945 shipped on day one.
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Analysis · May 20, 2026 · Colten Anderson
CitrixBleed: the patch closed the leak but left the stolen keys working
CVE-2023-4966 leaked post-MFA session tokens from NetScaler.
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Field Note · May 20, 2026 · Colten Anderson
FortiClient EMS CVE-2023-48788: a SQL injection that talks the database into running SYSTEM commands
When a product runs on Microsoft SQL Server, a SQL injection is rarely just a data leak.
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Field Note · May 20, 2026 · Colten Anderson
Jenkins CVE-2024-23897: from 'limited file read' to your secret key
The KEV entry calls it 'limited read access to certain files.
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Analysis · May 20, 2026 · Colten Anderson
Five hours from public PoC to live exploitation on your monitoring server
CVE-2024-6670 is an unauthenticated SQL injection in WhatsUp Gold.
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Analysis · May 19, 2026 · Colten Anderson
YellowKey is unpatched and your travel laptops are exposed today
A public PoC, a TPM-only default, and no patch in sight.
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Analysis · May 18, 2026 · Colten Anderson
KB5089549 fails at 35% because your ESP is full
May's Windows 11 cumulative dies at the boot-file write step on machines with under 10 MB free in the EFI System Partition.
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Analysis · May 18, 2026 · Colten Anderson
Apple's May Wi-Fi kernel bug is bad, but it's probably not Broadpwn
CVE-2026-28819 gets kernel code execution on macOS, but Apple's wording points at a local-app trigger, not a rogue access point.
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Analysis · May 17, 2026 · Colten Anderson
Dead.Letter is a Debian and Ubuntu problem, and the popular workaround is wrong
Exim 4.
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Analysis · May 15, 2026 · Colten Anderson
When breaking the maintenance window is cheaper than waiting
The change board exists to make change safer, not slower.
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Field Note · May 15, 2026 · Colten Anderson
A defensible software inventory you can build with the tools you already have
PowerShell, dpkg, system_profiler, Nmap, and a git repo will produce a weekly software inventory that joins cleanly against the CISA KEV catalog.
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Field Note · May 15, 2026 · Colten Anderson
Patching Windows when your test ring is two laptops
Microsoft's deployment-ring guidance was written for orgs where 5% of the fleet is dozens of machines.
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Field Note · May 15, 2026 · Colten Anderson
Recovering from a bad Intune deployment without making it worse
Stop the spread, unwind the damage, verify it took.
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Field Note · May 15, 2026 · Colten Anderson
A 30-minute Patch Tuesday triage you can actually run
How to get from 150 CVEs to the 4-8 that change your week, using only public signals and a clock.
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Field Note · May 15, 2026 · Colten Anderson
Nine PowerShell checks before you trust a Windows host
A short, native-PowerShell audit a Windows admin can run on any host in about ten minutes.
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Analysis · May 14, 2026 · Colten Anderson
Fragnesia is the patch you already deployed, bypassed
If you rolled the Dirty Frag kernel update last week and called it done, your fleet is exposed again.
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Analysis · May 11, 2026 · Colten Anderson
The .de outage was a TLD postmortem, not a patch you missed
DENIC's signing pipeline shipped two-thirds bad signatures during a routine ZSK rotation on May 5.
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Analysis · May 11, 2026 · Colten Anderson
Kubernetes 1.36 is the upgrade that quietly rewrites your RBAC
The headline features in 1.
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Analysis · May 8, 2026 · Colten Anderson
Cleo shipped a fix in October. Cl0p was bypassing it by December.
CVE-2024-50623 was patched in 5.
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Analysis · May 8, 2026 · Colten Anderson
Qlik patched the smuggling bug, then Praetorian beat it with one extra letter
On August 29, 2023, Qlik shipped a literal-string filter for chunked transfer encoding.
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Analysis · May 8, 2026 · Colten Anderson
Mitel MiCollab keeps shipping the same path-traversal bug class
watchTowr published a working unauth file-read chain on December 5, 2024 with one of the two CVEs still a 0-day.
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Analysis · May 8, 2026 · Colten Anderson
Your LiteLLM proxy needs to be on 1.83.10 by May 11
CISA gave a three-day deadline on a pre-auth SQL injection in LiteLLM.
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Analysis · May 8, 2026 · Colten Anderson
The researcher who reported two Windows bugs to Microsoft was exploiting a third
CVE-2025-26633 turns MMC's localization feature into a code execution vector.
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Analysis · May 8, 2026 · Colten Anderson
Broadcom turned an ESXi zero-day into a patch-access crisis
CVE-2025-22225 was exploited for over a year before Broadcom patched it.
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Analysis · May 8, 2026 · Colten Anderson
Ivanti EPMM has produced a confirmed zero-day every year since 2023. Here's the full chain.
Twelve CVEs.
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Analysis · May 7, 2026 · Colten Anderson
CISA says patch by Friday. Palo Alto's fix ships next Tuesday.
CVE-2026-0300 is an unauthenticated RCE in PAN-OS Captive Portal, exploited since April 9 by a state-aligned actor.
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Analysis · May 6, 2026 · Colten Anderson
Citrix shipped CitrixBleed again
Citrix shipped the same pre-auth memory disclosure bug class it patched in 2023.
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Analysis · May 6, 2026 · Colten Anderson
CrushFTP chose the narrative over its customers
CrushFTP tried to keep a CVSS 9.
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Analysis · May 6, 2026 · Colten Anderson
Fortinet encrypted your config backups with 'Mary had a littl' for six years
Every FortiGate encrypted config backups with the same AES key for years.
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Analysis · May 6, 2026 · Colten Anderson
SAP NetWeaver was owned for ten weeks before anyone said anything
Five threat groups were already inside SAP NetWeaver when the emergency patch shipped.
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Analysis · May 6, 2026 · Colten Anderson
Six zero-days in three years: the CLFS pattern Microsoft can't outrun
Microsoft patched a CLFS zero-day on April 8 but left Windows 10 without a fix for five weeks.
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Analysis · May 5, 2026 · Colten Anderson
Oracle blamed its customers for a zero-day it hadn't patched
Oracle's first public statement during active Cl0p exploitation told customers the breach was their fault for not applying a patch that didn't exist.
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Analysis · May 5, 2026 · Colten Anderson
BeyondTrust RS/PRA hit again. Same endpoint, same bug class, 15 months later.
The researcher who found CVE-2026-1731 did it by asking one question about the December 2024 fix: did the same pattern exist elsewhere?
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Analysis · May 5, 2026 · Colten Anderson
Your firewall management console was the breach. Cisco FMC CVE-2026-20131.
CVSS 10.
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Analysis · May 5, 2026 · Colten Anderson
Exchange's deserialization problem didn't start in 2023. It still isn't fixed.
A ransomware group picked up a three-year-old Exchange RCE because scanning at scale still finds unpatched servers.
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Analysis · May 5, 2026 · Colten Anderson
GoAnywhere MFT gets its third critical RCE in three years
Storm-1175 was exploiting CVE-2025-10035 two days before Fortra even shipped the hotfix to customers.
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Analysis · May 5, 2026 · Colten Anderson
Cl0p chained an Oracle EBS SSRF into a mass extortion campaign. Your patch window is 21 days.
CVE-2025-61884 is a pre-auth SSRF in Oracle E-Business Suite that Cl0p weaponized into a full RCE chain hitting 100+ organizations.
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Analysis · May 5, 2026 · Colten Anderson
PaperCut's other bug just became a ransomware vector again
CVE-2023-27351, the auth bypass that lived in CVE-2023-27350's shadow, is back.
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Analysis · May 5, 2026 · Colten Anderson
React2Shell turned every Next.js App Router deployment into a pre-auth RCE target
Lachlan Davidson reported CVE-2025-55182 to Meta on a Friday.
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Analysis · May 5, 2026 · Colten Anderson
SharePoint's two-week window: patched servers were still exploitable
Organizations that patched SharePoint on July 9 did everything right and were still vulnerable.
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Analysis · May 5, 2026 · Colten Anderson
The 6.5 that enabled 400 compromises: authentication bypasses and the CVSS blind spot
CVE-2025-49706 scored CVSS 6.
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Analysis · May 5, 2026 · Colten Anderson
The patch that wasn't: why SharePoint's fix needed a fix
CVE-2025-53770 bypassed Microsoft's July patch for SharePoint within days.
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Analysis · May 5, 2026 · Colten Anderson
SmarterMail fixed a CVSS 10 and told no one for two months
CVE-2025-52691 is a pre-auth RCE in SmarterMail's file upload API.
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Analysis · May 5, 2026 · Colten Anderson
48 hours from patch to exploitation: CVE-2026-23760 and the window that doesn't exist anymore
SmarterMail's patch shipped January 15.
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Analysis · May 5, 2026 · Colten Anderson
SmarterMail's ConnectToHub API gave attackers SYSTEM in a single POST request
CVE-2026-24423 is an unauthenticated RCE in SmarterMail's ConnectToHub API.
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Analysis · May 5, 2026 · Colten Anderson
TeamCity's path traversal took two years to reach KEV. That's a long time to leave a CI server exposed.
CVE-2024-27199, a path traversal in JetBrains TeamCity On-Premises, was patched in March 2024 and exploited by BianLian ransomware within days.
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Analysis · May 3, 2026 · Colten Anderson
Copy Fail is a 732-byte root shell. Patch your Linux fleet this week.
CVE-2026-31431 is a deterministic privilege escalation in the Linux kernel affecting versions 4.
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Analysis · May 3, 2026 · Colten Anderson
Cerdigent was a false positive. Check what Defender actually removed.
Defender definition 1.
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Analysis · May 1, 2026 · Colten Anderson
Hotpatch goes default in Autopatch. You have 10 days.
Microsoft flips hotpatch on by default for all Autopatch tenants May 11.
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Analysis · May 1, 2026 · Colten Anderson
A 4.3 that mattered: the 13-day gap between patch and exploitation flag
Microsoft patched CVE-2026-32202 on April 14 without marking it exploited.
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Field Note · May 1, 2026 · Colten Anderson
Patch CVE-2026-40372, then rotate the keys
The ASP.
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Analysis · Apr 30, 2026 · Colten Anderson
CVE-2026-41940 isn't just a cPanel bug. It's a design assumption that shipped for a decade.
A CRLF injection in cPanel's session writer gave attackers unauthenticated root in four requests.