CVE-2025-11931
Integer Underflow Leads to Out-of-Bounds Access in XChaCha20-Poly1305 Decrypt
- State
- Published
- Severity
- 2.1 Low
- Published
- Nov 21, 2025
- Updated
- Dec 8, 2025
- Reserved
- Oct 17, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.1 Low | 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 | wolfSSL |
Weaknesses
- CWE-191 Integer Underflow (Wrap or Wraparound)
Affected Products
| Product | Versions |
|---|---|
wolfSSLwolfSSL |
|
References
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