CVE-2026-5772
LOWMatchDomainName 1-Byte Stack Buffer Over-Read in Hostname Validation
Title source: cnaDescription
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.
References (1)
Scores
CVSS v4
2.1
EPSS
0.0005
EPSS Percentile
14.4%
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
Details
CWE
CWE-126
Status
published
Products (1)
wolfSSL/wolfSSL
< 5.9.0
Published
Apr 09, 2026
Tracked Since
Apr 10, 2026