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"cveId": "CVE-2026-40467",
"assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
"state": "PUBLISHED",
"assignerShortName": "CERT-PL",
"dateReserved": "2026-04-13T14:44:55.647Z",
"datePublished": "2026-07-13T12:07:52.006Z",
"dateUpdated": "2026-07-13T13:02:22.646Z"
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"dateUpdated": "2026-07-13T12:11:59.802Z"
},
"title": "Use after free in gawk",
"datePublic": "2026-07-13T12:07:00.000Z",
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"type": "CWE"
}
]
}
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"affected": [
{
"vendor": "GNU",
"product": "gawk",
"repo": "https://cgit.git.savannah.gnu.org/cgit/gawk.git/",
"programFiles": [
"io.c"
],
"programRoutines": [
{
"name": "do_getline_redir()"
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"lang": "en",
"value": "Use After Free vulnerability has been found in \"io.c\" program file of gawk (do_getline_redir() routine). This issue may lead to a crash. It affects gawk in versions 5.4.0 and below.",
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{
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"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"subIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "LOW",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
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"baseSeverity": "MEDIUM",
"baseScore": 5.1,
"vectorString": "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"
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}
],
"credits": [
{
"lang": "en",
"value": "Michał Majchrowicz (AFINE)",
"type": "finder"
},
{
"lang": "en",
"value": "Marcin Wyczechowski (AFINE)",
"type": "finder"
}
],
"source": {
"discovery": "EXTERNAL"
},
"x_generator": {
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"timestamp": "2026-07-13T13:02:16.597089Z",
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"title": "CISA ADP Vulnrichment",
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