CVE-2025-3110
A remote, anonymous attacker can exploit a vulnerability in OpenVPN to manipulate data.
CSIRTS triage
- What
- A remote, anonymous attacker can exploit a vulnerability in OpenVPN to manipulate data.
- Who is affected
- Users of OpenVPN in affected versions.
- Urgency
- Remediation is important as data manipulation could lead to further attacks.
- Action
- Update to the latest version of OpenVPN.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2025-3110
Get an email if CVE-2025-3110 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Exploitation outlook
- Low exploitation risk0.31% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 23% of all EPSS-scored CVEs.
Advisory coverage (2)
- medium[NEW] [medium] OpenVPN: Vulnerability allows data manipulationcert-bund · 2026-07-09
- highCVE-2025-3110: OpenVPN Access Server 2.7.2 through 3.1.0 accepts bare line-feed sequences inside HTTP header v…nvd · 2026-07-08
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2025-3110)