x3270 before 3.3.12ga12 does not verify that the server hostname matches a domain name in…
Priority LOW 27CWE-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 · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
EPSS 0.00621 50th 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 · 19
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:paul_mattes:x3270:*:ga11:*:*:*:*:*:* | up to 3.3.12 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.5:*:*:*:*:*:*:* | 3.3.5 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.6:*:*:*:*:*:*:* | 3.3.6 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.7:*:*:*:*:*:*:* | 3.3.7 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.8:-:*:*:*:*:*:* | 3.3.8 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.8:p1:*:*:*:*:*:* | 3.3.8 p1 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.8:p2:*:*:*:*:*:* | 3.3.8 p2 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.8:p3:*:*:*:*:*:* | 3.3.8 p3 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.9:ga11:*:*:*:*:*:* | 3.3.9 ga11 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.9:ga12:*:*:*:*:*:* | 3.3.9 ga12 | Vulnerable | Paul Mattes |
- cpe:2.3:a:paul_mattes:x3270:*:ga11:*:*:*:*:*:* Versions up to 3.3.12 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.5:*:*:*:*:*:*:* Versions 3.3.5 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.6:*:*:*:*:*:*:* Versions 3.3.6 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.7:*:*:*:*:*:*:* Versions 3.3.7 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.8:-:*:*:*:*:*:* Versions 3.3.8 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.8:p1:*:*:*:*:*:* Versions 3.3.8 p1 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.8:p2:*:*:*:*:*:* Versions 3.3.8 p2 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.8:p3:*:*:*:*:*:* Versions 3.3.8 p3 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.9:ga11:*:*:*:*:*:* Versions 3.3.9 ga11 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.9:ga12:*:*:*:*:*:* Versions 3.3.9 ga12 Vulnerable ·Paul Mattes
Show 9 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:paul_mattes:x3270:3.3.10:ga3:*:*:*:*:*:* | 3.3.10 ga3 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.10:ga4:*:*:*:*:*:* | 3.3.10 ga4 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.10:ga5:*:*:*:*:*:* | 3.3.10 ga5 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.11:beta2:*:*:*:*:*:* | 3.3.11 beta2 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.11:beta4:*:*:*:*:*:* | 3.3.11 beta4 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.11:ga6:*:*:*:*:*:* | 3.3.11 ga6 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.12:beta6:*:*:*:*:*:* | 3.3.12 beta6 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.12:ga10:*:*:*:*:*:* | 3.3.12 ga10 | Vulnerable | Paul Mattes |
| cpe:2.3:a:paul_mattes:x3270:3.3.12:ga7:*:*:*:*:*:* | 3.3.12 ga7 | Vulnerable | Paul Mattes |
- cpe:2.3:a:paul_mattes:x3270:3.3.10:ga3:*:*:*:*:*:* Versions 3.3.10 ga3 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.10:ga4:*:*:*:*:*:* Versions 3.3.10 ga4 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.10:ga5:*:*:*:*:*:* Versions 3.3.10 ga5 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.11:beta2:*:*:*:*:*:* Versions 3.3.11 beta2 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.11:beta4:*:*:*:*:*:* Versions 3.3.11 beta4 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.11:ga6:*:*:*:*:*:* Versions 3.3.11 ga6 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.12:beta6:*:*:*:*:*:* Versions 3.3.12 beta6 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.12:ga10:*:*:*:*:*:* Versions 3.3.12 ga10 Vulnerable ·Paul Mattes
- cpe:2.3:a:paul_mattes:x3270:3.3.12:ga7:*:*:*:*:*:* Versions 3.3.12 ga7 Vulnerable ·Paul Mattes
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 7 | Affected | No fix yet |
Not affected: 2 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2012-5662
- 2026-10-03 Alias added: GHSA-mjjm-m83r-gv3w
- 2026-11-07 EPSS moved to the 50th–90th percentile
References
Sources
- CVE-2012-5662 · CVE Program
- CVE-2012-5662 · NVD
- FIRST EPSS
- GHSA-mjjm-m83r-gv3w · GitHub Advisory Database · CC BY 4.0
- CVE-2012-5662 · 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