What is CVE-2026-66745?

CVE-2026-66745 is a high-severity vulnerability in Articatech Artica Proxy, classified under Code Injection. CVSS score: 7.5/10. Published 2026-07-28.

How severe is CVE-2026-66745?

High severity. CVSS v3 base score is 7.5 out of 10.

RCE in Articatech Artica Proxy

CVE-2026-66745

Artica Proxy before 4.50.000000 Service Pack 7 (fixed in hotfix 20260724-02) contains a session fixation vulnerability that allows unauthenticated attackers to hijack administrative sessions by setting a known PHPSESSID on a victim's browser prior to authentication. Attackers can pre-set a controlled session identifier and wait for a victim to authenticate through fw.login.php, after which the attacker gains a fully authenticated administrative session on port 9000.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.003 (24.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Articatech Artica Proxy — versions 0, 4.50.000000

Weakness classification (CWE)

CWE-94 — Code Injection

References

Release Notes (release-notes)
Download Page (patch)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-66745?: CVE-2026-66745 is a high-severity vulnerability in Articatech Artica Proxy, classified under Code Injection. CVSS score: 7.5/10. Published 2026-07-28.
How severe is CVE-2026-66745?: High severity. CVSS v3 base score is 7.5 out of 10.