5

CVE-2011-0534: apache tomcat Resource Management Errors

Modified
AliasesGHSA-43v2-6grp-9pp9
Published 10-02-2011Last modified 06-08-2024

Vulnerability summary

CVE-2011-0534 is a medium (CVSS 5.0) Resource Management Errors vulnerability in apache tomcat. EPSS estimates a 7.89% chance of exploitation in the next 30 days, higher than 94.7% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (OSV · Maven); no exploitation reported by the 5 checked sources; EPSS 8% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
7.89%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3
DSA-2160-1RHSA-2011:0335RHSA-2011:0348

Timeline

  1. 10-02-2011
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

Apache Tomcat 7.0.0 through 7.0.6 and 6.0.0 through 6.0.30 does not enforce the maxHttpHeaderSize limit for requests involving the NIO HTTP connector, which allows remote attackers to cause a denial of service (OutOfMemoryError) via a crafted request.

CVSS metrics

2 scores · 2 sources · 2 versions

EPSS trend

Probability

7.89%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

No change 0.00 pp

From 7.89% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Apache1 product
  • tomcatEOL7.0.0 | 7.0.1 | 7.0.2 | 7.0.3 | 7.0.4 | 7.0.5 | 7.0.6 | 6.0.0 | 6.0.1 | 6.0.2 | 6.0.3 | 6.0.4 | 6.0.5 | 6.0.6 | 6.0.7 | 6.0.8 | 6.0.9 | 6.0.10 | 6.0.11 | 6.0.12 | 6.0.13 | 6.0.14 | 6.0.15 | 6.0.16 | 6.0.17 | 6.0.18 | 6.0.19 | 6.0.20 | 6.0.24 | 6.0.26 | 6.0.27 | 6.0.28 | 6.0.29 | 6.0.30
Org.apache.tomcat1 product
  • tomcat≥ 6.0.0, < 6.0.32 | ≥ 7.0.0, < 7.0.8

2 vendors · 2 products

References

30 links
Show all 30 references