CVE-2025-11931 — Integer Underflow (Wrap or Wraparound) in Wolfssl

CWE-191 — Integer Underflow (Wrap or Wraparound)5 documents5 sources
Severity
2.1LOWNVD
EPSS
0.0%
top 94.18%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
WolfsslDebian WolfsslMsrc Azl3 Mariadb 10.11.11-1 ON Azure Linux 3.0+1 more
Timeline
PublishedNov 21
Latest updateNov 22

Description

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.

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Affected Packages6 packages

▶debiandebian/wolfssl< wolfssl 5.8.4-1 (forky)
▶CVEListV5wolfssl/wolfssl< 5.8.4
▶Debianwolfssl/wolfssl< 5.8.4-1
▶NVDwolfssl/wolfssl5.8.4

Patches

Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-h957-386q-gm5j: Integer Underflow Leads to Out-of-Bounds Access in XChaCha20-Poly1305 Decrypt↗2025-11-22
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OSV
CVE-2025-11931: Integer Underflow Leads to Out-of-Bounds Access in XChaCha20-Poly1305 Decrypt↗2025-11-21
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📋Vendor Advisories

2
Microsoft
Integer Underflow Leads to Out-of-Bounds Access in XChaCha20-Poly1305 Decrypt↗2025-11-11
▶
Debian
CVE-2025-11931: wolfssl - Integer Underflow Leads to Out-of-Bounds Access in XChaCha20-Poly1305 Decrypt. T...↗2025
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CVE-2025-11931 — Integer Underflow (Wrap or Wraparound) | cvebase