CVE-2026-42533
De multiples vulnérabilités ont été découvertes dans les produits F5. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et une atteinte à la confidentialité des données.
No public exploitation has been reported so far. A fixed version is available (see the table below).
Recommended action: Update to the fixed version listed for your distribution using the native package manager.
Severity metrics
CVSS 4.0 : 9.2 CRITICAL · CVSS 3.1 : 8.1 HIGH
Vector: AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Key points
- CVE : CVE-2026-42533, CVE-2026-46333, CVE-2026-52865, CVE-2026-55723...
Affected & fixed versions by distribution
Versions are the native distribution strings (backport-aware): RHEL/Debian/SUSE backport fixes, so compare with the distro version comparator (dpkg / rpm / vercmp), not the upstream version.
| Distribution | Package | Affected | Fixed version | Status |
|---|---|---|---|---|
| Debian:11 | nginx | - | - | affected (no fix yet) |
| Debian:12 | nginx | - | - | affected (no fix yet) |
| Debian:13 | nginx | - | - | affected (no fix yet) |
| Debian:14 | nginx | - | - | affected (no fix yet) |
| Ubuntu:Pro:14.04:LTS | nginx | - | - | affected (no fix yet) |
| Ubuntu:Pro:16.04:LTS | nginx | - | - | affected (no fix yet) |
| Ubuntu:Pro:18.04:LTS | nginx | - | - | affected (no fix yet) |
| Ubuntu:Pro:20.04:LTS | nginx | - | - | affected (no fix yet) |
| Ubuntu:22.04:LTS | nginx | - | - | affected (no fix yet) |
| Ubuntu:24.04:LTS | nginx | - | - | affected (no fix yet) |
| Ubuntu:26.04:LTS | nginx | - | - | affected (no fix yet) |
| openSUSE:Tumbleweed | nginx | - | 1.31.3-1.1 | fixed |