6.8

CVE-2012-3523: isc inn

CVSS: 6.8v2.0MediumModified
AliasesDEBIAN-CVE-2012-3523
Published 11-11-2012Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2012-3523 is a medium (CVSS 6.8) vulnerability in isc inn. EPSS estimates a 3.23% chance of exploitation in the next 30 days, higher than 88% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.8/10
010
Medium · v2.0 (NVD)
EPSS score
3.23%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-11-2012
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

3.23%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

0.00 pp

From 3.23% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.23%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • inn2< 2.5.3-1
Isc1 product
  • inn≤ 2.5.2 | 1.4 | 1.4sec | 1.4sec2 | 1.4unoff3 | 1.4unoff4 | 1.5 | 1.5.1 | 1.7 | 1.7.2 | 2.0 | 2.1 | 2.2 | 2.2.1 | 2.2.2 | 2.2.3 | 2.4.0

2 vendors · 2 products

References

4 links