{"id":"CVE-2026-1425","aliases":["DEBIAN-CVE-2026-1425","EUVD-2026-4706","GHSA-hqj6-7698-rxx4","UBUNTU-CVE-2026-1425"],"status":"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.","severity":{"version":"4.0","score":6.3,"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00401,"percentile":0.3484,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-119","CWE-121"],"published":"2026-01-26T07:32:06Z","modified":"2026-10-28T11:07:36Z","fixes":[{"ecosystem":"Debian:13","package":"smartdns","fixed_in":["46.1+dfsg-1.1~deb13u1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"smartdns","fixed_in":["46.1+dfsg-1.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"smartdns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["40+dfsg-1","42+dfsg-1","43+dfsg-1","45+dfsg-1","46+dfsg-1","46.1+dfsg-1","46.1+dfsg-1.1","46.1+dfsg-1.1~deb13u1","48.2+dfsg-1","48.3+dfsg-1"]},{"source":"osv","ecosystem":"Debian:13","package":"smartdns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"46.1+dfsg-1.1~deb13u1"}]}],"versions":["46.1+dfsg-1"]},{"source":"osv","ecosystem":"Debian:14","package":"smartdns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"46.1+dfsg-1.1"}]}],"versions":["46.1+dfsg-1","46.1+dfsg-1.1~deb13u1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"smartdns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["33+dfsg-2.1","33+dfsg-2.1build1","35+dfsg-1","35+dfsg-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"smartdns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["42+dfsg-1","43+dfsg-1","45+dfsg-1","45+dfsg-1build1","45+dfsg-1build2","45+dfsg-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"smartdns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["46+dfsg-1ubuntu1","46.1+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"smartdns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["46.1+dfsg-1build1","46.1+dfsg-1.1","48.2+dfsg-1","48.3+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"smartdns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["46.1+dfsg-1","46.1+dfsg-1build1"]}],"products":[{"vendor":"pymumu","product":"smartdns"}],"references":[{"url":"https://vuldb.com/?id.342841","tags":["vdb-entry","technical-description","advisory"]},{"url":"https://vuldb.com/?ctiid.342841","tags":["signature","permissions-required","report"]},{"url":"https://vuldb.com/?submit.736827","tags":["third-party-advisory","advisory"]},{"url":"https://github.com/pymumu/smartdns/commit/2d57c4b4e1add9b4537aeb403f794a084727e1c8","tags":["patch","fix"]},{"url":"https://github.com/pymumu/smartdns/","tags":["product","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1425","tags":["advisory"]},{"url":"https://github.com/pymumu/smartdns"},{"url":"https://github.com/advisories/GHSA-hqj6-7698-rxx4"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1425.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-1425","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-1425","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-1425","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-1425","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.","status":"published","published":"2026-01-26T07:32:06.516Z","modified":"2026-02-23T08:58:07.493Z","cvss":[{"version":"4.0","score":6.3,"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","level":"medium","assessor":"cna"},{"version":"3.1","score":5.6,"vector":"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","level":"medium","assessor":"cna"},{"version":"3.0","score":5.6,"vector":"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","level":"medium","assessor":"cna"},{"version":"2.0","score":5.1,"vector":"AV:N/AC:H/Au:N/C:P/I:P/A:P/E:ND/RL:OF/RC:C","assessor":"cna"}],"cwes":["CWE-121","CWE-119"],"updated_at":"2026-11-02T14:20:01.618694Z"}],"euvd":[{"id":"EUVD-2026-4706","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.","status":"published","published":"2026-01-26T07:32:06Z","modified":"2026-02-23T08:58:07Z","cvss":[{"version":"4.0","score":6.3,"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","level":"medium"}],"updated_at":"2026-11-02T19:48:34.555054Z"}],"ghsa":[{"id":"GHSA-hqj6-7698-rxx4","title":"A security flaw has been discovered in pymumu SmartDNS up to 47.1. This vulnerability affects the...","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.","status":"published","published":"2026-01-26T09:30:18Z","modified":"2026-02-23T09:31:22Z","cvss":[{"version":"4.0","score":6.3,"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:06:19.172449Z"}],"nvd":[{"id":"CVE-2026-1425","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.","status":"published","published":"2026-01-26T08:16:00.49Z","modified":"2026-06-17T10:15:45.92Z","cvss":[{"version":"4.0","score":6.3,"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"2.0","score":5.1,"vector":"AV:N/AC:H/Au:N/C:P/I:P/A:P","level":"medium","assessor":"secondary"}],"cwes":["CWE-119","CWE-121"],"updated_at":"2026-11-02T14:12:04.769088Z"}],"osv":[{"id":"CVE-2026-1425","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.","status":"published","published":"2026-01-26T07:32:06.516Z","modified":"2026-10-28T11:07:36.171332161Z","cvss":[{"version":"4.0","score":6.3,"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","level":"medium"}],"cwes":["CWE-119","CWE-121"],"updated_at":"2026-11-02T15:44:57.354194Z"},{"id":"DEBIAN-CVE-2026-1425","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.","status":"published","published":"2026-01-26T08:16:00.49Z","modified":"2026-10-01T03:02:22.598503809Z","cvss":[{"version":"4.0","score":6.3,"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"}],"updated_at":"2026-11-02T15:45:51.8748Z"},{"id":"UBUNTU-CVE-2026-1425","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.","status":"published","published":"2026-01-26T08:16:00Z","modified":"2026-10-17T12:58:05.260573387Z","cvss":[{"version":"3.1","score":5.6,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"medium"},{"version":"4.0","score":6.3,"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","level":"medium"}],"updated_at":"2026-11-02T16:56:00.592716Z"}]}}