5

CVE-2012-2733: apache tomcat Improper Input Validation

Modified
Published 16-11-2012Last modified 06-08-2024

Vulnerability summary

CVE-2012-2733 is a medium (CVSS 5.0) Improper Input Validation vulnerability in apache tomcat. EPSS estimates a 8.74% chance of exploitation in the next 30 days, higher than 95.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
8.74%
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 1
RHSA-2013:0266

Timeline

  1. 16-11-2012
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

java/org/apache/coyote/http11/InternalNioInputBuffer.java in the HTTP NIO connector in Apache Tomcat 6.x before 6.0.36 and 7.x before 7.0.28 does not properly restrict the request-header size, which allows remote attackers to cause a denial of service (memory consumption) via a large amount of header data.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

8.74%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

No change 0.00 pp

From 8.74% 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 (CVSS vector). Other conditions: not stated in public data.

Apache1 product
  • tomcatEOL6.0 | 6.0.0 | 6.0.0:alpha | 6.0.1 | 6.0.1:alpha | 6.0.2 | 6.0.2:alpha | 6.0.2:beta | 6.0.3 | 6.0.4 | 6.0.4:alpha | 6.0.5 | 6.0.6 | 6.0.6:alpha | 6.0.7 | 6.0.7:alpha | 6.0.7:beta | 6.0.8 | 6.0.8:alpha | 6.0.9 | 6.0.9:beta | 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 | 6.0.31 | 6.0.32 | 6.0.33 | 6.0.35 | 7.0.0 | 7.0.0:beta | 7.0.1 | 7.0.2 | 7.0.2:beta | 7.0.3 | 7.0.4 | 7.0.4:beta | 7.0.5 | 7.0.6 | 7.0.7 | 7.0.8 | 7.0.9 | 7.0.10 | 7.0.11 | 7.0.12 | 7.0.13 | 7.0.14 | 7.0.15 | 7.0.16 | 7.0.17 | 7.0.18 | 7.0.19 | 7.0.20 | 7.0.21 | 7.0.22 | 7.0.23 | 7.0.25

1 vendor · 1 product

References

16 links
Show all 16 references