CVE-2013-4559: n/a vulnerability

CVE-2013-4559: lighttpd before 1.4.33 does not check the return value of the (1) setuid, (2) setgid, or (3) setgroups func...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 16:45 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2013-4559 affects lighttpd before 1.4.33. During restart, failed privilege-dropping calls may be ignored, leaving the web server running as root. For executives, the concern is not broad ransomware-style exploitation, but a serious privilege boundary failure on exposed legacy web infrastructure. Exposure is most likely on internet-facing or internal systems still running lighttpd versions before 1.4.33, including distribution-packaged builds that were not updated after the 2013 vendor advisories. Treat this as a legacy web-server hardening priority. It is old, but the failure mode can leave a public service running as root. Patch or retire affected instances during the next urgent maintenance cycle. Mitigation focus: Upgrade lighttpd to 1.4.33 or a vendor-fixed package.; Review Debian, openSUSE, HP, and appliance vendor guidance where relevant.; Prioritize externally reachable lighttpd servers and legacy Linux images..

Prepared: Jun 14, 2026, 15:13 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2013-4559 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup

Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Nov 19, 2013, 19:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
DSA-2795CVE reference · vendor-advisory, x_refsource_DEBIAN
https://kc.mcafee.com/corporate/index?page=content&id=SB10310CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.