Low severity · published Jan 30, 2026
CVE-2025-15497
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
3.8
CVSS
0.4%
EPSS
No
On KEV
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
OpenVPN · OpenVPN
2.7_alpha1 through 2.7_rc5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-15497
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-15497
community.openvpn.net
https://community.openvpn.net/Security%20Announcements/CVE-2025-15497
www.mail-archive.com
https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00156.html
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