CVE-2010-1194
The match_component function in smtp-tls.c in libESMTP 1.0.3.r1, and possibly other versions...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2010-1194- CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-310
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2010-1194- Updated
- 2026-11-02
EUVDEUVD-2010-1224 No score
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.
- Record
EUVD-2010-1224- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wqwx-p8fg-v9px No score
The match_component function in smtp-tls.c in libESMTP 1.0.3.r1, and possibly other versions...
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.
- Record
GHSA-wqwx-p8fg-v9px- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2010-1194- Updated
- 2026-11-02
OSVDEBIAN-CVE-2010-1194 No score
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.
- Record
DEBIAN-CVE-2010-1194- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2010-1194 is a medium vulnerability (CVSS 6.8) in Stafford.uklinux Libesmtp, published March 31, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.35%, the 71st percentile. Fixed in libesmtp 1.0.4-2.
References
openwall.com/lists/oss-security/2010/03/09/3
vupen.com/english/advisories/2010/1107
bugs.debian.org/cgi-bin/bugreport.cgi?bug=311191
lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html
nvd.nist.gov/vuln/detail/CVE-2010-1194
github.com/advisories/GHSA-wqwx-p8fg-v9px
security-tracker.debian.org/tracker/CVE-2010-1194