{"id":"CVE-2026-1425","state":"PUBLISHED","title":"pymumu SmartDNS SVBC Record dns.c _dns_decode_SVCB_HTTPS stack-based overflow","description":"A security flaw has been discovered in pymumu SmartDNS up to 47.1. This vulnerability affects the function _dns_decode_rr_head/_dns_decode_SVCB_HTTPS of the file src/dns.c of the component SVBC Record Parser. The manipulation results in stack-based buffer overflow. It is possible to launch the attack remotely. A high complexity level is associated with this attack. It is stated that the exploitability is difficult. The patch is identified as 2d57c4b4e1add9b4537aeb403f794a084727e1c8. Applying a patch is advised to resolve this issue.","publishedAt":"2026-01-26T07:32:06.516Z","updatedAt":"2026-02-23T08:58:07.493Z","severity":{"score":6.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X","source":"VulDB"},"assigner":"VulDB","products":["pymumu SmartDNS"],"affected":[{"vendor":"pymumu","product":"SmartDNS","versions":[{"version":"47.0","status":"affected"},{"version":"47.1","status":"affected"}],"cpes":["cpe:2.3:a:pymumu:smartdns:*:*:*:*:*:*:*:*"],"modules":["SVBC Record Parser"]}],"references":["https://vuldb.com/?id.342841","https://vuldb.com/?ctiid.342841","https://vuldb.com/?submit.736827","https://github.com/pymumu/smartdns/commit/2d57c4b4e1add9b4537aeb403f794a084727e1c8","https://github.com/pymumu/smartdns/"],"weaknesses":["CWE-121","CWE-119"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/1xxx/CVE-2026-1425.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-1425","state":"PUBLISHED","datePublished":"2026-01-26T07:32:06.516Z","dateUpdated":"2026-02-23T08:58:07.493Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-01-25T17:17:00.491Z"},"containers":{"cna":{"title":"pymumu SmartDNS SVBC Record dns.c _dns_decode_SVCB_HTTPS stack-based overflow","descriptions":[{"lang":"en","value":"A security flaw has been discovered in pymumu SmartDNS up to 47.1. This vulnerability affects the function _dns_decode_rr_head/_dns_decode_SVCB_HTTPS of the file src/dns.c of the component SVBC Record Parser. The manipulation results in stack-based buffer overflow. It is possible to launch the attack remotely. A high complexity level is associated with this attack. It is stated that the exploitability is difficult. The patch is identified as 2d57c4b4e1add9b4537aeb403f794a084727e1c8. Applying a patch is advised to resolve this issue."}],"affected":[{"vendor":"pymumu","product":"SmartDNS","versions":[{"version":"47.0","status":"affected"},{"version":"47.1","status":"affected"}],"cpes":["cpe:2.3:a:pymumu:smartdns:*:*:*:*:*:*:*:*"],"modules":["SVBC Record Parser"]}],"references":[{"url":"https://vuldb.com/?id.342841","name":"VDB-342841 | pymumu SmartDNS SVBC Record dns.c _dns_decode_SVCB_HTTPS stack-based overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/?ctiid.342841","name":"VDB-342841 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/?submit.736827","name":"Submit #736827 | pymumu smartdns 47.1 Stack-based Buffer Overflow","tags":["third-party-advisory"]},{"url":"https://github.com/pymumu/smartdns/commit/2d57c4b4e1add9b4537aeb403f794a084727e1c8","tags":["patch"]},{"url":"https://github.com/pymumu/smartdns/","tags":["product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":6.3,"vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":5.6,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":5.6,"vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":5.1,"vectorString":"AV:N/AC:H/Au:N/C:P/I:P/A:P/E:ND/RL:OF/RC:C"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","type":"CWE","lang":"en","description":"Stack-based Buffer Overflow"}]},{"descriptions":[{"cweId":"CWE-119","type":"CWE","lang":"en","description":"Memory Corruption"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-02-23T08:58:07.493Z"},"timeline":[{"time":"2026-01-25T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-01-25T01:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-01-26T19:07:29.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"liloler (VulDB User)","type":"reporter"}],"tags":["x_open-source"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-26T14:16:06.137472Z","id":"CVE-2026-1425","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-26T14:16:22.355Z"}}]}}}