critical
CVE-2023-26463
strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution be ...
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Trivy's own label is CRITICAL. Rated critical by NVD, CBL-Mariner, Photon OS. Rated lower by Ubuntu (high).
Description
strongSwan 5.9.8 and 5.9.9 potentially allows remote code execution because it uses a variable named "public" for two different purposes within the same function. There is initially incorrect access control, later followed by an expired pointer dereference. One attack vector is sending an untrusted client certificate during EAP-TLS. A server is affected only if it loads plugins that implement TLS-based EAP methods (EAP-TLS, EAP-TTLS, EAP-PEAP, or EAP-TNC). This is fixed in 5.9.10.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| CBL-Mariner 2.0 | strongswan | 0:5.9.10-1.cm2 |
| Photon OS 4.0 | strongswan | 5.9.8-2.ph4 |
| Photon OS 5.0 | strongswan | 5.9.8-3.ph5 |
| alpine 3.17 | strongswan | 5.9.10-r0 |
| alpine 3.18 | strongswan | 5.9.10-r0 |
| alpine 3.19 | strongswan | 5.9.10-r0 |
| alpine 3.20 | strongswan | 5.9.10-r0 |
| alpine 3.21 | strongswan | 5.9.10-r0 |
| alpine 3.22 | strongswan | 5.9.10-r0 |
| alpine 3.23 | strongswan | 5.9.10-r0 |
| alpine 3.24 | strongswan | 5.9.10-r0 |
| alpine edge | strongswan | 5.9.10-r0 |
Show all 17 entries from 17 sources
| Source | Package | Fixed in |
|---|---|---|
| CBL-Mariner 2.0 | strongswan | 0:5.9.10-1.cm2 |
| Photon OS 4.0 | strongswan | 5.9.8-2.ph4 |
| Photon OS 5.0 | strongswan | 5.9.8-3.ph5 |
| alpine 3.17 | strongswan | 5.9.10-r0 |
| alpine 3.18 | strongswan | 5.9.10-r0 |
| alpine 3.19 | strongswan | 5.9.10-r0 |
| alpine 3.20 | strongswan | 5.9.10-r0 |
| alpine 3.21 | strongswan | 5.9.10-r0 |
| alpine 3.22 | strongswan | 5.9.10-r0 |
| alpine 3.23 | strongswan | 5.9.10-r0 |
| alpine 3.24 | strongswan | 5.9.10-r0 |
| alpine edge | strongswan | 5.9.10-r0 |
| debian 12 | strongswan | 5.9.8-4 |
| debian 13 | strongswan | 5.9.8-4 |
| debian 14 | strongswan | 5.9.8-4 |
| echo | strongswan | 5.9.8-4 |
| ubuntu 23.04 | strongswan | 5.9.8-3ubuntu3 |