CVE-2012-5533: lighttpd Resource Management Errors
Vulnerability summary
CVE-2012-5533 is a medium (CVSS 5.0) Resource Management Errors vulnerability in lighttpd. EPSS estimates a 12.04% chance of exploitation in the next 30 days, higher than 96.1% of scored vulnerabilities. 2 public exploits are recorded.
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 1 · Related 1Timeline
- 24-11-2012PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The http_request_split_value function in request.c in lighttpd before 1.4.32 allows remote attackers to cause a denial of service (infinite loop) via a request with a header containing an empty token, as demonstrated using the "Connection: TE,,Keep-Alive" header.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
12.04%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
No change 0.00 pp
From 12.04% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
2 foundExploit Reference (securityfocus.com)
Maturity: unknown
lighttpd 1.4.31 - Denial of Service (PoC)
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- lighttpd< 1.4.31-2
Lighttpd1 product
- lighttpd1.4.31 | 1.4.32
2 vendors · 2 products
References
17 links- wiki.mageia.org/en/Support/Advisories/MGASA-2012-0345X Refsource CONFIRM
