There exists use-after-free vulnerabilities in lighttpd <= 1.4.50 request parsing which might read from invalid pointers to memory used in the same request, not from other requests.
CVE-2018-25103
Score 5.3 from GitHub Security Advisory published 2024-06-17. NVD baseline CVSS 5.3; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.3
- EG Score
- 5.3(medium)
- EG Risk
- 24(Track)EG Risk 24/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity53% × 45%Exploitation1% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 48%
- KEV
- Not listed
Published
June 17, 2024
Last Modified
April 15, 2026
References (12)
- cret@certhttps://9443417.fs1.hubspotusercontent-na1.net/hubfs/9443417/Security%20Advisories/2024/AMI-SA-2024002.pdf
- cret@certhttps://blogvdoo.wordpress.com/2018/11/06/giving-back-securing-open-source-iot-projects/#more-736
- cret@certhttps://github.com/lighttpd/lighttpd1.4/commit/d161f53de04bc826ce1bdaeb3dce2c72ca50a3f8
- cret@certhttps://github.com/lighttpd/lighttpd1.4/commit/df8e4f95614e476276a55e34da2aa8b00b1148e9
- cret@certhttps://www.kb.cert.org/vuls/id/312260
- cret@certhttps://www.runzero.com/blog/lighttpd/
- af854a3a-2127-422b-91ae-364da2661108https://9443417.fs1.hubspotusercontent-na1.net/hubfs/9443417/Security%20Advisories/2024/AMI-SA-2024002.pdf
- af854a3a-2127-422b-91ae-364da2661108https://blogvdoo.wordpress.com/2018/11/06/giving-back-securing-open-source-iot-projects/#more-736
- af854a3a-2127-422b-91ae-364da2661108https://github.com/lighttpd/lighttpd1.4/commit/d161f53de04bc826ce1bdaeb3dce2c72ca50a3f8
- af854a3a-2127-422b-91ae-364da2661108https://github.com/lighttpd/lighttpd1.4/commit/df8e4f95614e476276a55e34da2aa8b00b1148e9
- af854a3a-2127-422b-91ae-364da2661108https://www.kb.cert.org/vuls/id/312260
- af854a3a-2127-422b-91ae-364da2661108https://www.runzero.com/blog/lighttpd/
Data Freshness Timeline
(refreshed 5× in last 7d / 38× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 158 total refreshes for this CVE.
- 2026-08-07 16:23 UTCEPSS rescore
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- 2026-06-22 11:43 UTCOSV refresh
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- 2026-06-04 16:39 UTCOSV refresh
- 2026-06-04 13:10 UTCEPSS rescore
Frequently asked(5)
What is CVE-2018-25103?
When was CVE-2018-25103 disclosed?
Is CVE-2018-25103 actively exploited?
What is the CVSS score of CVE-2018-25103?
How do I remediate CVE-2018-25103?
Dependency Blast Radius
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