DEBIAN-CVE-2026-1425
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.
DEBIAN-CVE-2026-1425
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-1425
smartdns
Source reference: /affected/0/package/name
- Affected versions
- 40+dfsg-1
Source reference:
/affected/0/versions42+dfsg-1Source reference:
/affected/0/versions43+dfsg-1Source reference:
/affected/0/versions45+dfsg-1Source reference:
/affected/0/versions46+dfsg-1Source reference:
/affected/0/versions46.1+dfsg-1Source reference:
/affected/0/versions46.1+dfsg-1.1Source reference:
/affected/0/versions46.1+dfsg-1.1~deb13u1Source reference:
/affected/0/versions48.2+dfsg-1Source reference:
/affected/0/versions48.3+dfsg-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
smartdns
Source reference: /affected/1/package/name
- Affected versions
- 46.1+dfsg-1
Source reference:
/affected/1/versions - Fixed versions
- 46.1+dfsg-1.1~deb13u1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
smartdns
Source reference: /affected/2/package/name
- Affected versions
- 46.1+dfsg-1
Source reference:
/affected/2/versions46.1+dfsg-1.1~deb13u1Source reference:
/affected/2/versions - Fixed versions
- 46.1+dfsg-1.1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "smartdns",
"purl": "pkg:deb/debian/smartdns?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"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"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-1425.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "46.1+dfsg-1.1~deb13u1"
}
]
}
],
"package": {
"name": "smartdns",
"purl": "pkg:deb/debian/smartdns?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"46.1+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-1425.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "46.1+dfsg-1.1"
}
]
}
],
"package": {
"name": "smartdns",
"purl": "pkg:deb/debian/smartdns?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"46.1+dfsg-1",
"46.1+dfsg-1.1~deb13u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-1425.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #55520 · Revision 1
- Added to Heist Feed
- Publisher date