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CVE-2012-5662

19
FAUCET Score

CVE-2012-5662 describes a vulnerability in x3270 versions prior to 3.3.12ga12, where the software fails to properly validate server hostnames against X.509 certificate fields. This flaw allows man-in-the-middle attackers to spoof SSL servers using any valid certificate. With a CVSS score of 5.8, this vulnerability has a medium severity, requiring medium attack complexity and potentially leading to partial confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.3.12CPE matchmatch criteria
cpe:2.3:a:paul_mattes:x3270:*:ga11:*:*:*:*:*:*
3.3.5CPE matchmatch criteria
cpe:2.3:a:paul_mattes:x3270:3.3.5:*:*:*:*:*:*:*
3.3.6CPE matchmatch criteria
cpe:2.3:a:paul_mattes:x3270:3.3.6:*:*:*:*:*:*:*
3.3.7CPE matchmatch criteria
cpe:2.3:a:paul_mattes:x3270:3.3.7:*:*:*:*:*:*:*
3.3.8CPE matchmatch criteria
cpe:2.3:a:paul_mattes:x3270:3.3.8:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.8MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.62%
Probability of exploitation in next 30 days
EPSS Percentile
46.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0062 is in the 8th percentile among its peer group of 19,956 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: x3270

Vendor Advisories (1)

redhatCVE-2012-5662Moderate

x3270: does not properly validate SSL certificates

Mar 20, 2013

References

osvdb.org / 91572
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/52650
exchange.xforce.ibmcloud.com / vulnerabilities/82984
sourceforge.net / projects/x3270/files/x3270/3.3.12ga12