CVE-2012-5662
x3270 before 3.3.12ga12 does not verify that the server hostname matches a domain name in the...
CVE-2012-5662 is a medium vulnerability (CVSS 5.8) in Paul Mattes X3270, published May 27, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.62%, the 50th percentile. Fixed in ibm-3270 3.3.14ga11-1.
- Severity
- 5.8 MediumCVSS 2.0, NVD
- Exploit chance
- 0.62%EPSS, 50th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
3.3.14ga11-1ibm-3270 +9 more
Description
x3270 before 3.3.12ga12 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ibm-3270Debian:12 | before 3.3.14ga11-1 | 3.3.14ga11-1 |
ibm-3270Debian:13 | before 3.3.14ga11-1 | 3.3.14ga11-1 |
ibm-3270Debian:14 | before 3.3.14ga11-1 | 3.3.14ga11-1 |
ibm-3270Ubuntu:18.04:LTS | All versions, plus listed versions 3.3.14ga11-1build13.6ga4-13.6ga4-1build13.6ga4-23.6ga4-3 | None known |
ibm-3270Ubuntu:20.04:LTS | All versions, plus listed versions 3.6ga4-3build1 | None known |
ibm-3270Ubuntu:22.04:LTS | All versions, plus listed versions 4.0ga12-34.0ga14-14.0ga14-1build14.1ga10-14.1ga10-1.1 | None known |
ibm-3270Ubuntu:24.04:LTS | All versions, plus listed versions 4.1ga10-1.14.1ga10-1.1build14.1ga10-1.1build2 | None known |
ibm-3270Ubuntu:25.10 | All versions, plus listed versions 4.3ga10-44.3ga10-5 | None known |
ibm-3270Ubuntu:26.10 | All versions, plus listed versions 4.3ga10-5build14.3ga10-5build2 | None known |
ibm-3270Ubuntu:26.04:LTS | All versions, plus listed versions 4.3ga10-54.3ga10-5build1 | None known |
What each source reports
NVD Score used
x3270 before 3.3.12ga12 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
- Record
CVE-2012-5662- CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-310
- Updated
- 2026-11-02
CVE ListNo score
x3270 before 3.3.12ga12 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
- Record
CVE-2012-5662- Updated
- 2026-11-02
EUVDEUVD-2012-5545No score
x3270 before 3.3.12ga12 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
- Record
EUVD-2012-5545- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mjjm-m83r-gv3wNo score
x3270 before 3.3.12ga12 does not verify that the server hostname matches a domain name in the...
x3270 before 3.3.12ga12 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
- Record
GHSA-mjjm-m83r-gv3w- Updated
- 2026-11-02
OSVNo score
x3270 before 3.3.12ga12 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
- Record
CVE-2012-5662- Updated
- 2026-11-02
OSVDEBIAN-CVE-2012-5662No score
x3270 before 3.3.12ga12 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
- Record
DEBIAN-CVE-2012-5662- Updated
- 2026-11-02
OSVUBUNTU-CVE-2012-5662No score
x3270 before 3.3.12ga12 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
- Record
UBUNTU-CVE-2012-5662- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.