CVE-2022-27255

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:realtek:ecos_rsdk_firmware:1.5.7p1:*:*:*:*:*:*:*", "matchCriteriaId": "3CBE0A3F-8E2C-4298-9D31-3231EA2A7811", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:realtek:ecos_rsdk:-:*:*:*:*:*:*:*", "matchCriteriaId": "21C73A0B-BD03-40CC-866A-5F426C47FCC3", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:realtek:ecos_msdk_firmware:4.9.4p1:*:*:*:*:*:*:*", "matchCriteriaId": "CA3FBD15-3C42-4E42-927B-95DAB0C19A57", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:realtek:ecos_msdk:-:*:*:*:*:*:*:*", "matchCriteriaId": "DB33169C-4A57-4559-A0EA-9632BB16E0AD", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Realtek eCos RSDK 1.5.7p1 and MSDK 4.9.4p1, the SIP ALG function that rewrites SDP data has a stack-based buffer overflow. This allows an attacker to remotely execute code without authentication via a crafted SIP packet that contains malicious SDP data."}, {"lang": "es", "value": "En Realtek eCos RSDK versi\u00f3n 1.5.7p1 y MSDK versi\u00f3n 4.9.4p1, la funci\u00f3n SIP ALG que reescribe los datos SDP presenta un desbordamiento del b\u00fafer en la regi\u00f3n stack de la memoria. Esto permite a un atacante ejecutar c\u00f3digo de forma remota sin autenticaci\u00f3n por medio de un paquete SIP dise\u00f1ado que contenga datos SDP maliciosos"}], "id": "CVE-2022-27255", "lastModified": "2026-06-17T04:36:35.797", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-08-01T12:15:08.357", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://forum.defcon.org/node/241835"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2022-27255.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://forum.defcon.org/node/241835"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2022-27255.pdf"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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