4.3

CVE-2011-3348: apache http_server Uncontrolled Resource Consumption

CVSS: 4.3v2.0MediumModified
AliasesDEBIAN-CVE-2011-3348
Published 19-09-2011Last modified 06-08-2024

Vulnerability summary

CVE-2011-3348 is a medium (CVSS 4.3) Uncontrolled Resource Consumption vulnerability in apache http_server. EPSS estimates a 22.38% chance of exploitation in the next 30 days, higher than 97.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v2.0 (NVD)
EPSS score
22.38%
0%100%
High · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 2

Timeline

  1. 19-09-2011
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The mod_proxy_ajp module in the Apache HTTP Server before 2.2.21, when used with mod_proxy_balancer in certain configurations, allows remote attackers to cause a denial of service (temporary "error state" in the backend server) via a malformed HTTP request.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

22.38%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

0.00 pp

From 22.38% on 18-09-2026

18-09-202618-10-2026
EPSS score
22.38%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (community.jboss.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Apache1 product
Debian1 product
  • apache2< 2.2.21-1
Redhat1 product

3 vendors · 3 products

References

31 links
Show all 31 references