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CVE-2012-3523
The STARTTLS implementation in nnrpd in INN before 2.5.3 does not properly restrict I/O buffering, which allows man-in-the-middle…
Medium6.8EPSS 3.2%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
The STARTTLS implementation in nnrpd in INN before 2.5.3 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 3.2% · top 12% of all CVEs (2 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Weakness
Affected products
n/a
- affected n/a
References (3)
- MDVSA-2012:156 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- 50661 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- openSUSE-SU-2012:1171 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .