CVE-2012-3544: apache tomcat Improper Input Validation
Vulnerability summary
CVE-2012-3544 is a medium (CVSS 5.0) Improper Input Validation vulnerability in apache tomcat. EPSS estimates a 11.00% chance of exploitation in the next 30 days, higher than 95.9% of scored vulnerabilities.
Not severe (CVSS 5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5 · Duplicates 1Timeline
- 01-06-2013PublishedVulnerability first disclosed.
- 09-10-2026Last modifiedVulnerability information updated.
Description
Apache Tomcat 6.x before 6.0.37 and 7.x before 7.0.30 does not properly handle chunk extensions in chunked transfer coding, which allows remote attackers to cause a denial of service by streaming data.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
11.00%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
No change 0.00 pp
From 11.00% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
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 | 6.0.36 | 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 | 7.0.28
Org.apache.tomcat1 product
- tomcat≥ 6.0.0, < 6.0.37 | ≥ 7.0.0, < 7.0.30
Ubuntu1 product
- tomcat6< 6.0.39-1
3 vendors · 3 products
References
33 linksShow all 33 references
- github.com/apache/tomcatPACKAGE