{"id":"CVE-2026-116124","title":"libgsf: libgsf: Arbitrary code execution via heap-based buffer overflow in OLE2 parser (CVE-2026-116124)","summary":"A flaw was found in libgsf. A heap-based buffer overflow vulnerability exists in the OLE2 document parser within the ole_info_read_metabat function. A remote attacker could exploit this flaw by enticing a user to open a specially crafted f…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvssSource":"vendor","cwe":["CWE-787","CWE-122","CWE-119"],"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","affected":["enterprise_linux 10","enterprise_linux 6","enterprise_linux 7","enterprise_linux 8","enterprise_linux 9"],"published":"2026-10-26","updated":"2026-10-26","sourceUpdated":"2026-10-26T07:04:10+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-116124.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-116124.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-116124"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2560528"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-116124"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116124"},{"url":"https://gitlab.gnome.org/GNOME/libgsf/-/commit/a8e25560b74f84c3f86df6ca0ac59195fa5af68a"},{"url":"https://vuldb.com/cve/CVE-2026-116124"},{"url":"https://vuldb.com/submit/1004965"},{"url":"https://vuldb.com/vuln/426192"},{"url":"https://vuldb.com/vuln/426192/cti"},{"url":"https://www.gnome.org/"}],"tags":["csaf","vex","red-hat","cve.org"],"scores":{"vendor":7.8,"cna":6.3},"ingestedAt":"2026-10-26T07:20:03.485Z","epss":0.00426,"epssPercentile":0.36675,"slug":"CVE-2026-116124","body":"## Overview\n\nA flaw was found in libgsf. A heap-based buffer overflow vulnerability exists in the OLE2 document parser within the ole_info_read_metabat function. A remote attacker could exploit this flaw by enticing a user to open a specially crafted file. Successful exploitation could lead to arbitrary code execution or cause an application crash, resulting in a Denial of Service (DoS).\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-26 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-116124.json)\n\n**libgsf: libgsf: Arbitrary code execution via heap-based buffer overflow in OLE2 parser** — rated Important by Red Hat. Released 2026-10-26.\n\nAffected:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 7\n- Red Hat Enterprise Linux 8\n- Red Hat Enterprise Linux 9\n\nNo fix planned:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 7\n- Red Hat Enterprise Linux 8\n- Red Hat Enterprise Linux 9\n\n## Remediation\n\nAffected","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":229399,"id":"CVE-2026-116124","ts":1793019736802,"field":"cvss","old":"6.3","new":"7.8"},{"seq":229398,"id":"CVE-2026-116124","ts":1793019736802,"field":"severity","old":"medium","new":"high"}]}