CVE-2025-11931 | THREATINT

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.

PUBLISHED Reserved 2025-10-17 | Published 2025-11-21 | Updated 2025-11-21 | Assigner wolfSSL

LOW: 2.1CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Problem types

CWE-191 Integer Underflow (Wrap or Wraparound)

Product status

Default status

unaffected

5.8.4

affected

Credits

Luigino Camastra from Aisle Research finder

References

github.com/wolfSSL/wolfssl/pull/9223

cve.org (CVE-2025-11931)

nvd.nist.gov (CVE-2025-11931)

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