{"id":"CVE-2026-111135","title":"libfwsi through 20260522 contains a heap out-of-bounds read vulnerability in libfwsi_mtp_volume_values_read_data() that allows attackers to read past buffer bounds via crafted MTP volume shell items","summary":"libfwsi through 20260522 contains a heap out-of-bounds read vulnerability in libfwsi_mtp_volume_values_read_data() that allows attackers to read past buffer bounds via crafted MTP volume shell items. Attackers can embed a 10 to 53 byte s…","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","cwe":["CWE-125"],"vendor":"libyal","product":"libfwsi","affected":["libfwsi <= 20260522"],"published":"2026-10-15","updated":"2026-10-15","sourceUpdated":"2026-10-15T19:17:27.273","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-111135","references":[{"url":"https://github.com/libyal/libfwsi","label":"disclosure@vulncheck.com"},{"url":"https://github.com/libyal/libfwsi/blob/2f2aba25b888f37314a39d8c3e71c0e3ced56e59/libfwsi/libfwsi_mtp_volume_values.c#L248-L273","label":"disclosure@vulncheck.com"},{"url":"https://hackmd.io/@haind-pwn/libfwsi-mtp-values-oob-read","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/libfwsi-through-20260522-heap-out-of-bounds-read-via-libfwsi-mtp-volume-values-read-data","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"ingestedAt":"2026-10-15T19:25:46.410Z","epss":0.00198,"epssPercentile":0.09528,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-21T01:17:38.566208Z"},"slug":"CVE-2026-111135","body":"## Overview\n\nlibfwsi through 20260522 contains a heap out-of-bounds read vulnerability in libfwsi_mtp_volume_values_read_data() that allows attackers to read past buffer bounds via crafted MTP volume shell items. Attackers can embed a 10 to 53 byte shell item with item data size of 44 or more in a .lnk file, jump list or shell bag to crash consuming processes.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":226711,"id":"CVE-2026-111135","ts":1792546635660,"field":"exploit_available","old":"false","new":"true"}]}