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        "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",
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                "dateUpdated": "2026-07-13T12:11:20.963Z"
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            "title": "Heap buffer overflow in gawk",
            "datePublic": "2026-07-13T12:07:00.000Z",
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                            "lang": "en",
                            "cweId": "CWE-190",
                            "description": "CWE-190 Integer Overflow or Wraparound",
                            "type": "CWE"
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            ],
            "affected": [
                {
                    "vendor": "GNU",
                    "product": "gawk",
                    "platforms": [
                        "32 bit"
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                    "repo": "https://cgit.git.savannah.gnu.org/cgit/gawk.git/",
                    "programFiles": [
                        "builtin.c"
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                    "programRoutines": [
                        {
                            "name": "do_sub()"
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                            "versionType": "semver"
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                    "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 32-bit builds of gawk in versions 5.4.0 and below.",
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            "references": [
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                    "url": "https://cgit.git.savannah.gnu.org/cgit/gawk.git/commit/?id=ae1b2d508f46913269a9e62aceda3636afe8147b",
                    "tags": [
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                        "vulnConfidentialityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "LOW",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
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                        "baseSeverity": "MEDIUM",
                        "baseScore": 5.1,
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                    "lang": "en",
                    "value": "Michał Majchrowicz (AFINE)",
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                    "lang": "en",
                    "value": "Marcin Wyczechowski (AFINE)",
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                                        "Exploitation": "none"
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