CVE-2026-116743: medium-severity vulnerability in libyal libmsiecf
libyal libmsiecf through 20260525 Double Free via libmsiecf_url_values_read_data
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.8epss 0.1%
libyal libmsiecf through 20260525 contains a double free vulnerability in libmsiecf_url_values_read_data() that allows attackers to corrupt heap memory via crafted partial URL records. Attackers can supply a crafted MSIE cache index.dat file whose recovered partial record has an oversized unknown_offset, crashing forensic tools processing it.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
libyal · libmsiecfReferences
https://github.com/libyal/libmsiecfhttps://github.com/libyal/libmsiecf/blob/20260525/libmsiecf/libmsiecf_url_values.c#L824https://github.com/libyal/libmsiecf/commit/a99a703d190d62f6c21b6225cf84ce80037e45d5https://github.com/libyal/libmsiecf/issues/6https://hackmd.io/@haindpwn/libmsiecf-url-record-partial-recovery-double-freehttps://www.vulncheck.com/advisories/libyal-libmsiecf-through-20260525-double-free-via-libmsiecf-url-values-read-data