{"id":"CVE-2026-40469","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-40469","generatedAt":"2026-10-28T01:10:28.859Z","title":"Integer overflow vulnerability has been found in \"builtin.c\" program file of gawk (do_sub() routine).","description":"Integer overflow vulnerability has been found in \"builtin.c\" program file of gawk (do_sub() routine). This issue could be used to overwrite gawk heap metadata and objects causing the program to crash. It affects 32-bit builds of gawk in versions 5.4.0 and below.","published":"2026-07-13T13:16:37.000Z","lastModified":"2026-10-24T22:10:00.000Z","status":"Analyzed","sourceIdentifier":"cvd@cert.pl","cvss":{"version":"4.0","score":5.1,"severity":"MEDIUM","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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"},"cwe":["CWE-190"],"affected":["fossies/gawk"],"epss":{"score":0.00213,"percentile":0.11564,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://cert.pl/en/posts/2026/07/CVE-2026-40467","tags":["Third Party Advisory"],"source":"cvd@cert.pl"},{"url":"https://cgit.git.savannah.gnu.org/cgit/gawk.git/commit/?id=ae1b2d508f46913269a9e62aceda3636afe8147b","tags":["Patch"],"source":"cvd@cert.pl"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-40469","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}