Cloudanix VulnDB

CVE-2025-11931

High · 8.2

CVSS

8.2

EPSS

0.3%

Published

Nov 21, 2025

CISA due date

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The record

Integer Underflow Leads to Out-of-Bounds Access in XChaCha20-Poly1305 Decrypt. This issue is hit specifically with a call to the function wc_XChaCha20Poly1305_Decrypt() which is not used with TLS connections, only from direct calls from an application.

Affected packages

Ecosystem Package Introduced Fixed