{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-40469", "assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6", "state": "PUBLISHED", "assignerShortName": "CERT-PL", "dateReserved": "2026-04-13T14:44:55.647Z", "datePublished": "2026-07-13T12:07:55.692Z", "dateUpdated": "2026-07-13T13:01:07.290Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6", "shortName": "CERT-PL", "dateUpdated": "2026-07-13T12:11:20.963Z"}, "title": "Heap buffer overflow in gawk", "datePublic": "2026-07-13T12:07:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-190", "description": "CWE-190 Integer Overflow or Wraparound", "type": "CWE"}]}], "affected": [{"vendor": "GNU", "product": "gawk", "platforms": ["32 bit"], "repo": "https://cgit.git.savannah.gnu.org/cgit/gawk.git/", "programFiles": ["builtin.c"], "programRoutines": [{"name": "do_sub()"}], "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "5.4.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "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\u00a032-bit builds of gawk in versions 5.4.0 and below.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Integer overflow vulnerability has been found in \"<span>builtin.c</span>\" program file of gawk (do_sub() <span>routine)</span>. <span>This issue could be used to overwrite gawk heap metadata and objects causing the program to crash. It affects</span>&nbsp;32-bit builds of gawk in versions 5.4.0 and below.<br>"}]}], "tags": ["x_open-source"], "references": [{"url": "https://cgit.git.savannah.gnu.org/cgit/gawk.git/commit/?id=ae1b2d508f46913269a9e62aceda3636afe8147b", "tags": ["patch"]}, {"url": "https://cert.pl/en/posts/2026/07/CVE-2026-40467", "tags": ["third-party-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "LOCAL", "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", "version": "4.0", "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"}}], "credits": [{"lang": "en", "value": "Micha\u0142 Majchrowicz (AFINE)", "type": "finder"}, {"lang": "en", "value": "Marcin Wyczechowski (AFINE)", "type": "finder"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-13T13:00:59.533242Z", "id": "CVE-2026-40469", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-13T13:01:07.290Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-40469", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-13T13:00:59.533242Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-13T13:01:03.311Z"}}], "cna": {"tags": ["x_open-source"], "title": "Heap buffer overflow in gawk", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Micha\u0142 Majchrowicz (AFINE)"}, {"lang": "en", "type": "finder", "value": "Marcin Wyczechowski (AFINE)"}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.1, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"repo": "https://cgit.git.savannah.gnu.org/cgit/gawk.git/", "vendor": "GNU", "product": "gawk", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "5.4.0"}], "platforms": ["32 bit"], "programFiles": ["builtin.c"], "defaultStatus": "unaffected", "programRoutines": [{"name": "do_sub()"}]}], "datePublic": "2026-07-13T12:07:00.000Z", "references": [{"url": "https://cgit.git.savannah.gnu.org/cgit/gawk.git/commit/?id=ae1b2d508f46913269a9e62aceda3636afe8147b", "tags": ["patch"]}, {"url": "https://cert.pl/en/posts/2026/07/CVE-2026-40467", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "Vulnogram 0.2.0"}, "descriptions": [{"lang": "en", "value": "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\u00a032-bit builds of gawk in versions 5.4.0 and below.", "supportingMedia": [{"type": "text/html", "value": "Integer overflow vulnerability has been found in \"<span>builtin.c</span>\" program file of gawk (do_sub() <span>routine)</span>. <span>This issue could be used to overwrite gawk heap metadata and objects causing the program to crash. It affects</span>&nbsp;32-bit builds of gawk in versions 5.4.0 and below.<br>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-190", "description": "CWE-190 Integer Overflow or Wraparound"}]}], "providerMetadata": {"orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6", "shortName": "CERT-PL", "dateUpdated": "2026-07-13T12:11:20.963Z"}}}, "cveMetadata": {"cveId": "CVE-2026-40469", "state": "PUBLISHED", "dateUpdated": "2026-07-13T13:01:07.290Z", "dateReserved": "2026-04-13T14:44:55.647Z", "assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6", "datePublished": "2026-07-13T12:07:55.692Z", "assignerShortName": "CERT-PL"}, "dataVersion": "5.2"}

{}

{}

{"affected": [{"configurations": [{"platform": ["32_bit"], "status": "affected", "versions": {"scheme": "generic", "value": "[0,5.4.0]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "gawk", "source": "cna", "vendor": "GNU"}, "product": "gawk", "vendor": "gnu"}], "created": "2026-07-13T14:30:16.268560+00:00", "updated": "2026-07-13T14:30:16.268590+00:00", "vendors": ["gnu", "gnu$PRODUCT$gawk"]}