CVE Explorer
CVE-2026-40468
Integer overflow vulnerability has been found in "builtin.c" program file of gawk. This issue may lead to memory exhaustion on the hosting operating system and could be used to overwrite gawk heap metadata and objects with attacker-controlled bytes. It affects gawk in versions 5.4.0 and below.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"gawk","programFiles":["builtin.c"],"repo":"https://cgit.git.savannah.gnu.org/cgit/gawk.git/","vendor":"GNU","versions":[{"lessThanOrEqual":"5.4.0","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:ba557e1ae93d126b0119acbe19db594eec3c4970743682ed70baca82288abdf6 · sha256:0f7fc5a9229a2b42… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":2.1,"baseSeverity":"LOW","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:L","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NO…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:ba557e1ae93d126b0119acbe19db594eec3c4970743682ed70baca82288abdf6 · sha256:0f7fc5a9229a2b42… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-190","description":"CWE-190 Integer Overflow or Wraparound","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:ba557e1ae93d126b0119acbe19db594eec3c4970743682ed70baca82288abdf6 · sha256:0f7fc5a9229a2b42… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"tags":["third-party-advisory"],"url":"https://cert.pl/en/posts/2026/07/CVE-2026-40467"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ba557e1ae93d126b0119acbe19db594eec3c4970743682ed70baca82288abdf6 · sha256:0f7fc5a9229a2b42… · /containers/cna/references/1
{"tags":["patch"],"url":"https://cgit.git.savannah.gnu.org/cgit/gawk.git/commit/?id=062f2f2581b991362c046f7f2e238ffa34e6f8c7"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ba557e1ae93d126b0119acbe19db594eec3c4970743682ed70baca82288abdf6 · sha256:0f7fc5a9229a2b42… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.