Medium severity5.5NVD Advisory· Published Oct 26, 2026
CVE-2026-116743
CVE-2026-116743
Description
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.
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Affected products
1Patches
Vulnerability mechanics
References
5- github.com/libyal/libmsiecf/blob/20260525/libmsiecf/libmsiecf_url_values.cnvd
- github.com/libyal/libmsiecf/commit/a99a703d190d62f6c21b6225cf84ce80037e45d5nvd
- github.com/libyal/libmsiecf/issues/6nvd
- hackmd.io/@haindpwn/libmsiecf-url-record-partial-recovery-double-freenvd
- www.vulncheck.com/advisories/libyal-libmsiecf-through-20260525-double-free-via-libmsiecf-url-values-read-datanvd
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