CVE-2013-4559
lighttpd before 1.4.33 does not check the return value of the (1) setuid, (2) setgid, or (3) setgroups functions, which might cause…
- 7.6HighCVSS base score
- 10.7%Exploitation in 30 daysEPSS · top 4.1% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
lighttpd before 1.4.33 does not check the return value of the (1) setuid, (2) setgid, or (3) setgroups functions, which might cause lighttpd to run as root if it is restarted and allows remote attackers to gain privileges, as demonstrated by multiple calls to the clone function that cause setuid to fail when the user process limit is reached.
Timeline
ID reserved
By redhat
- 5 months later
· 5 months later
Published
- 11 years later
· 11 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.6 | AV:N/AC:H/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 10.7% · top 4.1% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.6.
Affected products
n/a
- affected n/a
References
8
- 55682 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- HPSBGN03191 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2014:0072 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- DSA-2795 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [oss-security] 20131112 Re: CVE Request: lighttpd multiple issues (setuid/... unchecked return value, FAM: read after free) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://kc.mcafee.com/corporate/index?page=content&id=SB10310 (opens in a new tab)x_refsource_CONFIRMx_transferred
- JVN#37417423 (opens in a new tab)third-party-advisoryx_refsource_JVNx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2013-4418 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2013-4559)Record last updated .