CVE

CVE-2022-36537

3field notes · 0digests

Field notes

Analysis · May 20, 2026 · The Commentary Desk
Why ransomware crews love a backup server twice over
CVE-2022-36537 is a ZK Framework bug that handed attackers ConnectWise R1Soft backup servers. A backup server is the perfect ransomware target for two reasons at once: it can push code to everything it protects, and destroying it removes the one thing that lets a victim refuse to pay.
Analysis · May 20, 2026 · The Commentary Desk
Ransomware crews keep hitting Veeam for the same two reasons
Four Veeam Backup & Replication CVEs feed the same playbook. Attackers target the backup server because it can destroy your recovery option and because it holds the credentials to everything it backs up. CVE-2024-40711 took Akira and Fog from access to ransomware fast.
Analysis · May 20, 2026 · operations-desk
The backup agent on every server was ALPHV's way in
Veritas Backup Exec's agent listens on every machine it backs up. Three 2021 CVEs in it, CVE-2021-27876, 27877, and 27878, let ALPHV/BlackCat affiliates get in. Backup infrastructure isn't just a destruction target; its agents are an attack surface on every host.