CVE-2025-6491

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-6491", "assignerOrgId": "dd77f84a-d19a-4638-8c3d-a322d820ed2b", "state": "PUBLISHED", "assignerShortName": "php", "dateReserved": "2025-06-22T03:05:22.008Z", "datePublished": "2025-07-13T22:10:15.996Z", "dateUpdated": "2025-11-04T21:14:48.898Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "affected", "packageName": "soap", "product": "PHP", "vendor": "PHP Group", "versions": [{"lessThan": "8.1.33", "status": "affected", "version": "8.1.*", "versionType": "semver"}, {"lessThan": "8.2.29", "status": "affected", "version": "8.2.*", "versionType": "semver"}, {"lessThan": "8.3.23", "status": "affected", "version": "8.3.*", "versionType": "semver"}, {"lessThan": "8.4.10", "status": "affected", "version": "8.4.*", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "reporter", "value": "Ahmed Lekssays"}], "datePublic": "2025-07-03T12:27:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 when parsing XML data in SOAP extensions, overly large (&gt;2Gb) XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server.&nbsp;</p>"}], "value": "In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 when parsing XML data in SOAP extensions, overly large (>2Gb) XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-476", "description": "CWE-476 NULL Pointer Dereference", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "dd77f84a-d19a-4638-8c3d-a322d820ed2b", "shortName": "php", "dateUpdated": "2025-07-13T22:10:15.996Z"}, "references": [{"url": "https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x"}], "source": {"advisory": "GHSA-453j-q27h-5p8x", "discovery": "EXTERNAL"}, "title": "NULL Pointer Dereference in PHP SOAP Extension via Large XML Namespace Prefix", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"references": [{"url": "https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-07-14T15:59:51.249317Z", "id": "CVE-2025-6491", "options": [{"Exploitation": "poc"}, {"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": "2025-07-14T15:59:53.756Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/07/msg00017.html"}, {"url": "http://www.openwall.com/lists/oss-security/2025/07/11/4"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-04T21:14:48.898Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://lists.debian.org/debian-lts-announce/2025/07/msg00017.html"}, {"url": "http://www.openwall.com/lists/oss-security/2025/07/11/4"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-04T21:14:48.898Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-6491", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-07-14T15:59:51.249317Z"}}}], "references": [{"url": "https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-07-14T15:59:46.081Z"}}], "cna": {"title": "NULL Pointer Dereference in PHP SOAP Extension via Large XML Namespace Prefix", "source": {"advisory": "GHSA-453j-q27h-5p8x", "discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "reporter", "value": "Ahmed Lekssays"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "PHP Group", "product": "PHP", "versions": [{"status": "affected", "version": "8.1.*", "lessThan": "8.1.33", "versionType": "semver"}, {"status": "affected", "version": "8.2.*", "lessThan": "8.2.29", "versionType": "semver"}, {"status": "affected", "version": "8.3.*", "lessThan": "8.3.23", "versionType": "semver"}, {"status": "affected", "version": "8.4.*", "lessThan": "8.4.10", "versionType": "semver"}], "packageName": "soap", "defaultStatus": "affected"}], "datePublic": "2025-07-03T12:27:00.000Z", "references": [{"url": "https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x"}], "x_generator": {"engine": "Vulnogram 0.2.0"}, "descriptions": [{"lang": "en", "value": "In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 when parsing XML data in SOAP extensions, overly large (>2Gb) XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server.", "supportingMedia": [{"type": "text/html", "value": "<p>In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 when parsing XML data in SOAP extensions, overly large (&gt;2Gb) XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server.&nbsp;</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-476", "description": "CWE-476 NULL Pointer Dereference"}]}], "providerMetadata": {"orgId": "dd77f84a-d19a-4638-8c3d-a322d820ed2b", "shortName": "php", "dateUpdated": "2025-07-13T22:10:15.996Z"}}}, "cveMetadata": {"cveId": "CVE-2025-6491", "state": "PUBLISHED", "dateUpdated": "2025-11-04T21:14:48.898Z", "dateReserved": "2025-06-22T03:05:22.008Z", "assignerOrgId": "dd77f84a-d19a-4638-8c3d-a322d820ed2b", "datePublished": "2025-07-13T22:10:15.996Z", "assignerShortName": "php"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "affected", "packageName": "soap", "product": "PHP", "vendor": "PHP Group", "versions": [{"lessThan": "8.1.33", "status": "affected", "version": "8.1.*", "versionType": "semver"}, {"lessThan": "8.2.29", "status": "affected", "version": "8.2.*", "versionType": "semver"}, {"lessThan": "8.3.23", "status": "affected", "version": "8.3.*", "versionType": "semver"}, {"lessThan": "8.4.10", "status": "affected", "version": "8.4.*", "versionType": "semver"}]}], "source": "security@php.net"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*", "matchCriteriaId": "1DFFB7CE-0CB6-4229-8A83-D5994163F599", "versionEndExcluding": "8.1.33", "versionStartIncluding": "8.1.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*", "matchCriteriaId": "C0671DC7-C9E0-4CB9-8CBE-7C7D724A4E3F", "versionEndExcluding": "8.2.29", "versionStartIncluding": "8.2.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*", "matchCriteriaId": "99142A2A-C510-477B-A090-DE73441BBFD0", "versionEndExcluding": "8.3.23", "versionStartIncluding": "8.3.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*", "matchCriteriaId": "61D8A8DF-85D3-435B-BB2B-F3D728575758", "versionEndExcluding": "8.4.10", "versionStartIncluding": "8.4.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 when parsing XML data in SOAP extensions, overly large (>2Gb) XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server."}, {"lang": "es", "value": "En las versiones de PHP 8.1.* anteriores a la 8.1.33, 8.2.* anteriores a la 8.2.29, 8.3.* anteriores a la 8.3.23 y 8.4.* anteriores a la 8.4.10, al analizar datos XML en extensiones SOAP, un prefijo de espacio de nombres XML demasiado grande (&gt;2 GB) puede provocar la desreferencia de puntero nulo. Esto puede provocar fallos y afectar la disponibilidad del servidor de destino."}], "id": "CVE-2025-6491", "lastModified": "2026-06-17T10:02:00.527", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "security@php.net", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-6491", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-07-14T15:59:51.249317Z", "version": "2.0.3"}}]}, "published": "2025-07-13T22:15:23.353", "references": [{"source": "security@php.net", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2025/07/11/4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/07/msg00017.html"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x"}], "sourceIdentifier": "security@php.net", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "security@php.net", "type": "Secondary"}]}

{"bugzilla": {"description": "php: NULL Pointer Dereference in PHP SOAP Extension via Large XML Namespace Prefix", "id": "2378690", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2378690"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["A vulnerability was found in PHP. If a SoapVar instance is created with a fully qualified name larger than 2G, this will cause a NULL pointer dereference resulting in a segmentation fault, leading to a denial of service."], "mitigation": {"lang": "en:us", "value": "Currently, no mitigation is currently available for this vulnerability."}, "name": "CVE-2025-6491", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "php", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Fix deferred", "package_name": "php", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "php", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "php:7.4/php", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "php:8.2/php", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "php", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "php:8.2/php", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "php:8.3/php", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-07-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-6491\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-6491\nhttps://github.com/php/php-src/security/advisories/GHSA-453j-q27h-5p8x"], "threat_severity": "Moderate"}

{"created": "2025-07-14T22:45:28.061201+00:00", "updated": "2025-07-14T22:45:28.061291+00:00", "vendors": ["php", "php$PRODUCT$php"]}