CVE-2025-15497
Insufficient epoch key slot processing in OpenVPN 2.7_alpha1 through 2.7_rc5 allows remote...
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
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
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
- Record
CVE-2025-15497- CVSS 4.0
- 3.8 Low
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-617
- Updated
- 2026-11-02
EUVDEUVD-2025-206570
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
- Record
EUVD-2025-206570- CVSS 4.0
- 3.8 Low
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4vwr-5vph-4mjg
Insufficient epoch key slot processing in OpenVPN 2.7_alpha1 through 2.7_rc5 allows remote...
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
- Record
GHSA-4vwr-5vph-4mjg- CVSS 4.0
- 3.8 Low
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-617
- Updated
- 2026-11-02
NVD
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
- Record
CVE-2025-15497- CVSS 4.0
- 3.8 Low
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-617
- Updated
- 2026-11-02
OSVDEBIAN-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
- Record
DEBIAN-CVE-2025-15497- CVSS 4.0
- 3.8 Low
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
openvpnDebian:14 |
before 2.7.0~rc5-1, plus listed versions 2.6.14-12.6.14-22.6.15-12.7.0~alpha1-12.7.0~alpha2-1 Show 9 moreShow less2.7.0~alpha3-12.7.0~beta1-12.7.0~beta2-12.7.0~beta3-12.7.0~rc1-12.7.0~rc2-12.7.0~rc2-22.7.0~rc3-12.7.0~rc4-1 |
2.7.0~rc5-1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-15497 is a low vulnerability (CVSS 3.8) in Openvpn, published January 30, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.36%, the 29th percentile. Fixed in openvpn 2.7.0~rc5-1.