OpenVPN Access Server 2.7.2 through 3.1.0 accepts bare line-feed sequences inside HTTP header values, allowing remote attackers to perform HTTP request smuggling when deployed behind a reverse proxy
CVE-2025-3110
Score 7.5 from GitHub Security Advisory published 2026-07-08. NVD baseline CVSS 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 49(Track)EG Risk 49/100SSVC: 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 computedSeverity75% × 45%Exploitation0% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 38%
- KEV
- Not listed
Published
July 8, 2026
Last Modified
July 10, 2026
Advisory Details (1)
Auto-updated Jul 8, 2026Access Server 3.2 Release Notes and Version Updates
https://openvpn.net/as-docs/as-3-2-release-notes.htmlVendor Advisories for CVE-2025-3110(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 61× 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 204 total refreshes for this CVE.
- 2026-09-18 19:27 UTCEPSS rescore
- 2026-09-18 05:43 UTCEG score recompute
- 2026-09-18 05:43 UTCGHSA enrichment
- 2026-09-17 19:29 UTCEPSS rescore
- 2026-09-16 14:07 UTCEPSS rescore
- 2026-09-16 05:14 UTCEPSS rescore
- 2026-09-13 23:49 UTCEG score recompute
- 2026-09-13 23:49 UTCGHSA enrichment
- 2026-09-13 16:46 UTCEPSS rescore
- 2026-09-13 08:24 UTCGHSA enrichment
- 2026-09-12 15:38 UTCEG score recompute
- 2026-09-12 15:38 UTCGHSA enrichment
- 2026-09-12 15:00 UTCEPSS rescore
- 2026-09-12 03:34 UTCEG score recompute
- 2026-09-12 03:34 UTCGHSA enrichment
- 2026-09-11 14:52 UTCEPSS rescore
- 2026-09-11 09:35 UTCEPSS rescore
- 2026-09-10 09:33 UTCEPSS rescore
- 2026-09-08 21:59 UTCEPSS rescore
- 2026-09-07 16:00 UTCEPSS rescore
- 2026-09-06 14:03 UTCEG score recompute
- 2026-09-06 14:03 UTCGHSA enrichment
- 2026-09-06 13:46 UTCEPSS rescore
- 2026-09-05 22:48 UTCEG score recompute
- 2026-09-05 22:48 UTCGHSA enrichment
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- 2026-09-04 05:05 UTCEPSS rescore
- 2026-09-02 14:11 UTCEPSS rescore
- 2026-09-01 13:53 UTCEPSS rescore
- 2026-09-01 04:38 UTCEPSS rescore
- 2026-08-30 19:34 UTCEG score recompute
- 2026-08-30 19:34 UTCGHSA enrichment
- 2026-08-30 19:16 UTCEPSS rescore
- 2026-08-30 07:30 UTCEG score recompute
- 2026-08-30 07:30 UTCGHSA enrichment
- 2026-08-30 01:21 UTCEPSS rescore
- 2026-08-28 21:40 UTCEPSS rescore
- 2026-08-27 21:50 UTCEG score recompute
- 2026-08-27 21:50 UTCGHSA enrichment
- 2026-08-27 14:24 UTCEPSS rescore
- 2026-08-27 01:29 UTCEG score recompute
- 2026-08-27 01:29 UTCGHSA enrichment
- 2026-08-26 14:45 UTCEPSS rescore
- 2026-08-26 08:23 UTCEG score recompute
- 2026-08-26 08:23 UTCGHSA enrichment
- 2026-08-25 13:48 UTCEPSS rescore
- 2026-08-25 10:12 UTCGHSA enrichment
- 2026-08-24 20:33 UTCEG score recompute
- 2026-08-24 20:33 UTCGHSA enrichment
- 2026-08-24 06:32 UTCGHSA enrichment
- 2026-08-23 17:47 UTCGHSA enrichment
- 2026-08-23 05:42 UTCEG score recompute
- 2026-08-23 05:42 UTCGHSA enrichment
- 2026-08-23 00:18 UTCEPSS rescore
- 2026-08-22 17:37 UTCGHSA enrichment
- 2026-08-22 04:49 UTCEG score recompute
- 2026-08-22 04:49 UTCGHSA enrichment
- 2026-08-21 23:48 UTCEPSS rescore
- 2026-08-21 16:44 UTCGHSA enrichment
- 2026-08-21 03:59 UTCEG score recompute
- 2026-08-21 03:59 UTCGHSA enrichment
- 2026-08-20 22:54 UTCEPSS rescore
- 2026-08-20 15:37 UTCGHSA enrichment
- 2026-08-20 01:59 UTCEG score recompute
- 2026-08-20 01:59 UTCGHSA enrichment
- 2026-08-19 17:03 UTCEPSS rescore
- 2026-08-19 17:03 UTCEPSS rescore
- 2026-08-19 10:58 UTCGHSA enrichment
- 2026-08-18 22:54 UTCEG score recompute
- 2026-08-18 22:54 UTCGHSA enrichment
- 2026-08-18 13:47 UTCEPSS rescore
- 2026-08-18 10:50 UTCGHSA enrichment
- 2026-08-17 22:29 UTCEG score recompute
- 2026-08-17 22:29 UTCGHSA enrichment
- 2026-08-17 13:46 UTCEPSS rescore
- 2026-08-17 06:05 UTCGHSA enrichment
- 2026-08-16 18:00 UTCEG score recompute
- 2026-08-16 18:00 UTCGHSA enrichment
- 2026-08-16 14:55 UTCEPSS rescore
- 2026-08-16 05:38 UTCEG score recompute
- 2026-08-16 05:38 UTCGHSA enrichment
- 2026-08-16 02:13 UTCEPSS rescore
- 2026-08-15 17:34 UTCGHSA enrichment
- 2026-08-15 05:30 UTCEG score recompute
- 2026-08-15 05:30 UTCGHSA enrichment
- 2026-08-15 01:29 UTCEPSS rescore
- 2026-08-14 17:26 UTCGHSA enrichment
- 2026-08-14 05:19 UTCEG score recompute
- 2026-08-14 05:19 UTCGHSA enrichment
- 2026-08-13 21:59 UTCEPSS rescore
- 2026-08-13 17:15 UTCGHSA enrichment
- 2026-08-13 05:10 UTCGHSA enrichment
- 2026-08-12 17:06 UTCEG score recompute
- 2026-08-12 17:06 UTCGHSA enrichment
- 2026-08-12 13:50 UTCEPSS rescore
- 2026-08-12 05:01 UTCGHSA enrichment
- 2026-08-11 16:57 UTCEG score recompute
- 2026-08-11 16:57 UTCGHSA enrichment
- 2026-08-11 04:53 UTCEG score recompute
- 2026-08-11 04:53 UTCGHSA enrichment
- 2026-08-10 16:49 UTCGHSA enrichment
Related CVEs(same CWE)
Same CWE
10 shownCWE-444
Frequently asked(5)
What is CVE-2025-3110?
When was CVE-2025-3110 disclosed?
Is CVE-2025-3110 actively exploited?
What is the CVSS score of CVE-2025-3110?
How do I remediate CVE-2025-3110?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2025-3110
Is Your Infrastructure Affected by CVE-2025-3110?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.