CVE-2026-5772 (GCVE-0-2026-5772)

Vulnerability from cvelistv5 – Published: 2026-04-09 21:50 – Updated: 2026-04-10 13:52
VLAI
Title
MatchDomainName 1-Byte Stack Buffer Over-Read in Hostname Validation
Summary
A 1-byte stack buffer over-read was identified in the MatchDomainName function (src/internal.c) during wildcard hostname validation when the LEFT_MOST_WILDCARD_ONLY flag is active. If a wildcard * exhausts the entire hostname string, the function reads one byte past the buffer without a bounds check, which could cause a crash.
Severity
2.1 (Low)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-10 13:52 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
wolfSSL wolfSSL Affected: 0 , ≤ 5.9.0 (semver)
guessed Create a notification for this product.
Credits
Zou Dikai
Show details on NVD website
To clipboard 

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