7.5

CVE-2011-3372: cyrus imapd Improper Authentication

CVSS: 7.5v2.0HighModified
Published 24-12-2011Last modified 17-09-2024

Vulnerability summary

CVE-2011-3372 is a high (CVSS 7.5) Improper Authentication vulnerability in cyrus imapd. EPSS estimates a 3.29% chance of exploitation in the next 30 days, higher than 88.3% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v2.0 (NVD)
EPSS score
3.29%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 1

Timeline

  1. 24-12-2011
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

imap/nntpd.c in the NNTP server (nntpd) for Cyrus IMAPd 2.4.x before 2.4.12 allows remote attackers to bypass authentication by sending an AUTHINFO USER command without sending an additional AUTHINFO PASS command.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

3.29%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

0.00 pp

From 3.29% on 20-09-2026

20-09-202620-10-2026
EPSS score
3.29%

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

Cyrus1 product

1 vendor · 1 product

References

9 links