Low 3.8Published Jan 30, 2026

CVE-2025-15497Insufficient epoch key slot processing in OpenVPN 2.7_alpha1 through 2.7_rc5 allows remote authenticated users to trigger an assert resulting in a denial of service

Updated under an hour ago (Oct 27, 2026, 11:50 PM ET)

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Exploited in the last 30 days

Insufficient epoch key slot processing in OpenVPN 2.7_alpha1 through 2.7_rc5 allows remote authenticated users to trigger an assert resulting in a denial of service

CVSS: 3.8 LOW (v4.0, CNA)CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U
Weakness (CWE): CWE-617
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: OpenVPN
NVD analysis: Deferred
Record last updated: Jan 30, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

OpenVPN OpenVPN openvpn:openvpn (from the name)	from 2.7_alpha1 through 2.7_rc5	CNA record

References

References

https://community.openvpn.net/Security%20Announcements/CVE-2025-15497	vendor-advisory
https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00156.html	release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.