{"id":"CVE-2026-19508","state":"PUBLISHED","title":"RDK WebUI heap-based buffer overflow vulnerability","description":"Heap-based buffer overflow in the multipart form-data parser in `jst_post.c` in RDK-B WebUI `rdkb-2025q4-kirkstone.04.10.26` allows a remote unauthenticated attacker to cause memory corruption and denial of service, and potentially execute arbitrary code, via a crafted multipart/form-data request.","publishedAt":"2026-08-19T19:28:29.196Z","updatedAt":"2026-08-27T17:19:56.917Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"certcc","products":["RDK RDK-B WebUI"],"affected":[{"vendor":"RDK","product":"RDK-B WebUI","versions":[{"version":"rdkb-2025q4-kirkstone","status":"affected"}]}],"references":["https://whitehats.pwr.edu.pl//blog/2026-08-19-multiple-vulnerabilities-in-rdkb/","https://developer.rdkcentral.com/documentation/documentation/rdk_broadband_documentation/components/webui/"],"weaknesses":["CWE-119"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/19xxx/CVE-2026-19508.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-19508","state":"PUBLISHED","datePublished":"2026-08-19T19:28:29.196Z","dateUpdated":"2026-08-27T17:19:56.917Z","assignerShortName":"certcc","assignerOrgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateReserved":"2026-08-10T19:14:20.637Z"},"containers":{"cna":{"title":"RDK WebUI heap-based buffer overflow vulnerability","descriptions":[{"lang":"en","value":"Heap-based buffer overflow in the multipart form-data parser in `jst_post.c` in RDK-B WebUI `rdkb-2025q4-kirkstone.04.10.26` allows a remote unauthenticated attacker to cause memory corruption and denial of service, and potentially execute arbitrary code, via a crafted multipart/form-data request."}],"affected":[{"vendor":"RDK","product":"RDK-B WebUI","versions":[{"version":"rdkb-2025q4-kirkstone","status":"affected"}]}],"references":[{"url":"https://whitehats.pwr.edu.pl//blog/2026-08-19-multiple-vulnerabilities-in-rdkb/"},{"url":"https://developer.rdkcentral.com/documentation/documentation/rdk_broadband_documentation/components/webui/"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer"}]}],"providerMetadata":{"shortName":"certcc","orgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateUpdated":"2026-08-19T19:28:29.196Z"},"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"VINCE 3.0.44","env":"prod","origin":"https://cveawg.mitre.org/api/cve/CVE-2026-19508"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.8,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-27T17:19:53.500839Z","id":"CVE-2026-19508","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-119","type":"CWE","lang":"en","description":"CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-27T17:19:56.917Z"}}]}}}