6.8

CVE-2011-2165: watchguard xcs

CVSS: 6.8v2.0MediumModified
Published 23-05-2011Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2011-2165 is a medium (CVSS 6.8) vulnerability in watchguard xcs. EPSS estimates a 5.16% chance of exploitation in the next 30 days, higher than 92.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
38/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.8/10
010
Medium · v2.0 (NVD)
EPSS score
5.16%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database

Timeline

  1. 23-05-2011
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The STARTTLS implementation in WatchGuard XCS 9.0 and 9.1 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP 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

5.16%

Chance of exploitation in the next 30 days

Percentile

92%

Versus all other CVEs

30-day change

0.00 pp

From 5.16% on 21-09-2026

21-09-202621-10-2026
EPSS score
5.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • exploit-databasephpUnverified

    Watchguard XCS 10.0 - Multiple Vulnerabilities

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Watchguard1 product

1 vendor · 1 product

References

5 links