CVE-2026-116743
mediumlibyal libmsiecf through 20260525 contains a double free vulnerability in libmsiecf_url_values_read_data() that allows attackers to corrupt heap memory via cra…
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
5.5
5.5 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-10-26 22:16
Modified: 2026-10-27 16:04
NVD status: Deferred
Last synced 1 day ago
Verified against the source API 2026-10-28 11:30 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/libyal/libmsiecf disclosure@vulncheck.com
- https://github.com/libyal/libmsiecf/blob/20260525/libmsiecf/libmsiecf_url_values.c#L824 disclosure@vulncheck.com
- https://github.com/libyal/libmsiecf/commit/a99a703d190d62f6c21b6225cf84ce80037e45d5 disclosure@vulncheck.com
- https://github.com/libyal/libmsiecf/issues/6 disclosure@vulncheck.com
- https://hackmd.io/@haindpwn/libmsiecf-url-record-partial-recovery-double-free disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/libyal-libmsiecf-through-20260525-double-free-via-lib... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-28 11:30 UTC · record ↗