Description
OpenVPN from 2.6.0 through 2.6.10 in a server role accepts multiple exit notifications from authenticated clients which will extend the validity of a closing session
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenVPN | OpenVPN | 2.6.0 – ≤ 2.6.10 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openvpn | 2.6.11-1 | — |
| Debian 13 | openvpn | 2.6.11-1 | — |
| Debian 12 | openvpn | 2.6.3-1+deb12u3 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | openvpn | 2.6.9-1ubuntu4.1 | USN-6860-1 |
| Ubuntu 22.04 LTS | openvpn | 2.5.9-0ubuntu0.22.04.3 | USN-6860-1 |
| Ubuntu 20.04 LTS | openvpn | 2.4.12-0ubuntu0.20.04.2 | USN-6860-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | openvpn | 2.6.8-150600.3.3.1 | SUSE-SU-2024:3502-1 |
| SLES 12 SP5 | openvpn | 2.3.8-16.32.1 | SUSE-SU-2024:3532-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | openvpn | 2.3.8-16.32.1 | SUSE-SU-2024:3532-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openvpn | 2.6.10-2.1 | openSUSE-SU-2024:14436-1 |
| openSUSE Leap 15.6 | openvpn | 2.6.8-150600.3.3.1 | SUSE-SU-2024:3502-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | openvpn | 2.6.11-r0 | — |
| Alpine v3.23 | openvpn | 2.6.11-r0 | — |
| Alpine v3.22 | openvpn | 2.6.11-r0 | — |
| Alpine v3.21 | openvpn | 2.6.11-r0 | — |
| Alpine v3.20 | openvpn | 2.6.11-r0 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | openvpn | 2.6.11-r0 | — |
| Alpine v3.18 | openvpn | 2.6.11-r0 | — |
Advisories 14
- USN-6860-1 openvpn vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2024:3502-1 Security update for openvpn SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:3532-1 Security update for openvpn SUSE / openSUSE Security Updates · Feb 4, 2026
- VDE-2025-053 Phoenix Contact: Multiple Vulnerabilities in PLCnext Firmware CERT@VDE · Jul 8, 2025
- openSUSE-SU-2024:14436-1 openvpn-2.6.10-2.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
- ICSA-24-319-06 Siemens SCALANCE M-800 Family CISA ICS & IT advisories · May 6, 2025
- WID-SEC-2024-1433 OpenVPN: Mehrere Schwachstellen ermöglichen Denial of Service und Privilegieneskalation BSI CERT-Bund (WID) · Apr 3, 2025
- NCSC-2025-0077 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Mar 11, 2025
- SSA-073066 SSA-073066: Multiple Vulnerabilities in SINEMA Remote Connect Server Before V3.2 SP3 Siemens ProductCERT · Mar 11, 2025
- SSA-615740 SSA-615740: Multiple Vulnerabilities in SINEMA Remote Connect Client Before V3.2 SP3 Siemens ProductCERT · Mar 11, 2025
- ICSA-25-072-10 Siemens SINEMA Remote Connect Client CISA ICS & IT advisories · Mar 11, 2025
- ICSA-25-072-02 Siemens SINEMA Remote Connect Server CISA ICS & IT advisories · Mar 11, 2025
- NCSC-2024-0433 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Nov 12, 2024
- SSA-354112 SSA-354112: Multiple Vulnerabilities in SCALANCE M-800 Family Before V8.2 Siemens ProductCERT · Nov 12, 2024