PatchTheCVECVE-2026-57623: Unauthenticated Arbitrary Code Execution in W3 Total Cache <= 2.9.4 versions.
CVE-2026-57623 is a critical-severity flaw (CVSS 9.0) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Unauthenticated Arbitrary Code Execution in W3 Total Cache <= 2.9.4 versions.
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.0 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 56%) |
| CISA exploited list | No |
| Weakness | CWE-1284 |
| Published | 2026-07-02 |
| Last modified | 2026-10-25 |
Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-57623?
No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.
Is CVE-2026-57623 being exploited?
CVE-2026-57623 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-57623 affect?
CVE-2026-57623 affects affected software. Severity is critical (CVSS 9.0). Unauthenticated Arbitrary Code Execution in W3 Total Cache <= 2.9.4 versions.
How urgent is CVE-2026-57623?
Priority 48/100. Critical severity; Remotely exploitable, no login, no user action