CVE-2026-116743
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.
Does this matter?
Lower severity and no EPSS score yet. Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 6.8 MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- No score yet
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-415
- Source
- disclosure@vulncheck.com
References
- https://github.com/libyal/libmsiecf
- https://github.com/libyal/libmsiecf/blob/20260525/libmsiecf/libmsiecf_url_values.c#L824
- https://github.com/libyal/libmsiecf/commit/a99a703d190d62f6c21b6225cf84ce80037e45d5
- https://github.com/libyal/libmsiecf/issues/6
- https://hackmd.io/@haindpwn/libmsiecf-url-record-partial-recovery-double-free
- https://www.vulncheck.com/advisories/libyal-libmsiecf-through-20260525-double-free-via-libmsiecf-url-values-read-data
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.