The match_component function in smtp-tls.c in libESMTP 1.0.3.r1, and possibly other…
Priority LOW 33CWE-310Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The match_component function in smtp-tls.c in libESMTP 1.0.3.r1, and possibly other versions including 1.0.4, treats two strings as equal if one is a substring of the other, which allows remote attackers to spoof trusted certificates via a crafted subjectAltName.
Why it matters now
EPSS 0.01353 71st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 32
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:stafford.uklinux:libesmtp:0.1:-:*:*:*:*:*:* | 0.1 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.1:a:*:*:*:*:*:* | 0.1 a | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.2:*:*:*:*:*:*:* | 0.2 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.3:*:*:*:*:*:*:* | 0.3 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.4:*:*:*:*:*:*:* | 0.4 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.5:*:*:*:*:*:*:* | 0.5 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.6:*:*:*:*:*:*:* | 0.6 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.6:a:*:*:*:*:*:* | 0.6 a | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.6.1:*:*:*:*:*:*:* | 0.6.1 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.7.0:*:*:*:*:*:*:* | 0.7.0 | Vulnerable | Stafford.uklinux |
- cpe:2.3:a:stafford.uklinux:libesmtp:0.1:-:*:*:*:*:*:* Versions 0.1 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.1:a:*:*:*:*:*:* Versions 0.1 a Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.2:*:*:*:*:*:*:* Versions 0.2 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.3:*:*:*:*:*:*:* Versions 0.3 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.4:*:*:*:*:*:*:* Versions 0.4 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.5:*:*:*:*:*:*:* Versions 0.5 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.6:*:*:*:*:*:*:* Versions 0.6 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.6:a:*:*:*:*:*:* Versions 0.6 a Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.6.1:*:*:*:*:*:*:* Versions 0.6.1 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.7.0:*:*:*:*:*:*:* Versions 0.7.0 Vulnerable ·Stafford.uklinux
Show 22 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:stafford.uklinux:libesmtp:0.7.1:*:*:*:*:*:*:* | 0.7.1 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.8.0:*:*:*:*:*:*:* | 0.8.0 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.8.1:*:*:*:*:*:*:* | 0.8.1 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.8.2:*:*:*:*:*:*:* | 0.8.2 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.8.3:*:*:*:*:*:*:* | 0.8.3 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.8.4:*:*:*:*:*:*:* | 0.8.4 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.8.5:*:*:*:*:*:*:* | 0.8.5 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.8.6:*:*:*:*:*:*:* | 0.8.6 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.8.7:*:*:*:*:*:*:* | 0.8.7 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.8.8:*:*:*:*:*:*:* | 0.8.8 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.8.9:*:*:*:*:*:*:* | 0.8.9 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.8.10:*:*:*:*:*:*:* | 0.8.10 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.8.10:p1:*:*:*:*:*:* | 0.8.10 p1 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.8.11:*:*:*:*:*:*:* | 0.8.11 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:0.8.12:*:*:*:*:*:*:* | 0.8.12 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:1.0:*:*:*:*:*:*:* | 1.0 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:1.0:rc1:*:*:*:*:*:* | 1.0 rc1 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:1.0.1:*:*:*:*:*:*:* | 1.0.1 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:1.0.2:*:*:*:*:*:*:* | 1.0.2 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:1.0.3:*:*:*:*:*:*:* | 1.0.3 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:1.0.3:r1:*:*:*:*:*:* | 1.0.3 r1 | Vulnerable | Stafford.uklinux |
| cpe:2.3:a:stafford.uklinux:libesmtp:1.0.4:*:*:*:*:*:*:* | 1.0.4 | Vulnerable | Stafford.uklinux |
- cpe:2.3:a:stafford.uklinux:libesmtp:0.7.1:*:*:*:*:*:*:* Versions 0.7.1 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.8.0:*:*:*:*:*:*:* Versions 0.8.0 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.8.1:*:*:*:*:*:*:* Versions 0.8.1 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.8.2:*:*:*:*:*:*:* Versions 0.8.2 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.8.3:*:*:*:*:*:*:* Versions 0.8.3 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.8.4:*:*:*:*:*:*:* Versions 0.8.4 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.8.5:*:*:*:*:*:*:* Versions 0.8.5 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.8.6:*:*:*:*:*:*:* Versions 0.8.6 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.8.7:*:*:*:*:*:*:* Versions 0.8.7 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.8.8:*:*:*:*:*:*:* Versions 0.8.8 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.8.9:*:*:*:*:*:*:* Versions 0.8.9 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.8.10:*:*:*:*:*:*:* Versions 0.8.10 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.8.10:p1:*:*:*:*:*:* Versions 0.8.10 p1 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.8.11:*:*:*:*:*:*:* Versions 0.8.11 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:0.8.12:*:*:*:*:*:*:* Versions 0.8.12 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:1.0:rc1:*:*:*:*:*:* Versions 1.0 rc1 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:1.0.1:*:*:*:*:*:*:* Versions 1.0.1 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:1.0.2:*:*:*:*:*:*:* Versions 1.0.2 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:1.0.3:*:*:*:*:*:*:* Versions 1.0.3 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:1.0.3:r1:*:*:*:*:*:* Versions 1.0.3 r1 Vulnerable ·Stafford.uklinux
- cpe:2.3:a:stafford.uklinux:libesmtp:1.0.4:*:*:*:*:*:*:* Versions 1.0.4 Vulnerable ·Stafford.uklinux
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix yet |
Timeline
- 2026-10-02 Threatist record created from CVE-2010-1194
- 2026-10-03 Alias added: GHSA-wqwx-p8fg-v9px
References
More Stafford.uklinux Libesmtp vulnerabilities
- TI-2010-01148 libESMTP, probably 1.0.4 and earlier, does not properly handle a '\0' character in a… CVSS 2.0MEDIUM 6.8
Sources
- CVE-2010-1194 · CVE Program
- CVE-2010-1194 · NVD
- FIRST EPSS
- GHSA-wqwx-p8fg-v9px · GitHub Advisory Database · CC BY 4.0
- CVE-2010-1194 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences