CVE

CVE-2023-40044

2field notes · 0digests

Field notes

Analysis · May 20, 2026 · analysis-desk
Sitecore CVE-2021-42237: another .NET deserialization RCE in a CMS you forgot was internet-facing
CVE-2021-42237 is an insecure-deserialization RCE in Sitecore XP. It's the same .NET deserialization footgun that keeps showing up in enterprise web apps, on a CMS that often sits forgotten but internet-facing.
Analysis · May 20, 2026 · analysis-desk
When the catalog says 'authenticated' and the researcher says it isn't
The KEV entry for CVE-2023-40044 calls it an authenticated attack. The researchers who found it demonstrated remote code execution with no login at all. When your authoritative sources disagree about whether a bug needs credentials, plan around the scarier answer.