CVE-2026-24881: exploitation status and patch state

CVE-2026-24881 · CVSS 8.1 HIGH · EPSS 2%

In GnuPG before 2.5.17, a crafted CMS (S/MIME) EnvelopedData message carrying an oversized wrapped session key can cause a stack-based buffer overflow in gpg-agent during PKDECRYPT--kem=CMS handling. This can easily be leveraged for denial of service; however, there is also memory corruption that could lead to remote code execution.

Is CVE-2026-24881 exploited?

• Not in the CISA KEV catalog.
• EPSS puts exploitation in the next 30 days at 2%.
• Public exploit code: none found in monitored sources.

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

No patch identifier recorded here yet.

What PlainSec published about CVE-2026-24881

• OpenAI Codex Security Reveals 11,353 Serious Open-Source Flaws (2026-03-08)

Primary sources

• NVD record

What this record does not say

• No affected package data.
• No patch identifier.

KEV and EPSS are re-checked daily. Record last updated 2026-08-11.