Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2012-3523

24
FAUCET Score

CVE-2012-3523 describes a plaintext command injection vulnerability in the STARTTLS implementation of nnrpd in INN versions prior to 2.5.3. This medium-severity flaw (CVSS 6.8) allows man-in-the-middle attackers to inject commands into encrypted sessions by sending cleartext commands that are processed after TLS is established, potentially leading to partial compromise of confidentiality, integrity, and availability. While the vulnerability has a high FAUCET Risk Score of 84/100, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.5.2CPE matchmatch criteria
cpe:2.3:a:isc:inn:*:*:*:*:*:*:*:*
1.4CPE matchmatch criteria
cpe:2.3:a:isc:inn:1.4:*:*:*:*:*:*:*
1.4secCPE matchmatch criteria
cpe:2.3:a:isc:inn:1.4sec:*:*:*:*:*:*:*
1.4sec2CPE matchmatch criteria
cpe:2.3:a:isc:inn:1.4sec2:*:*:*:*:*:*:*
1.4unoff3CPE matchmatch criteria
cpe:2.3:a:isc:inn:1.4unoff3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.23%
Probability of exploitation in next 30 days
EPSS Percentile
86.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0323 is in the 81st percentile among its peer group of 19,954 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 Advisories (1)

redhatCVE-2012-3523Moderate

(nnrpd): Prone to STARTTLS plaintext command injection

Jun 15, 2012

References

lists.opensuse.org / opensuse-updates/2012-09/msg00058.html
secunia.com / advisories/50661
mandriva.com / security/advisories