RCE in Endian Firewall
CVE-2026-34791
Endian Firewall version 3.3.25 and prior allow authenticated users to execute arbitrary OS commands via the DATE parameter to /cgi-bin/logs_proxy.cgi. The DATE parameter value is used to construct a file path that is passed to a Perl open() call, which allows command injection due to an incomplete regular expression validation.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.019 (78.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.019 · change: +0.006
Affected products
- Endian Firewall — versions 3.3.25
- Endian Firewall Community
Weakness classification (CWE)
References
- help.endian.com/hc/en-us/sections/360004371358-Community (release-notes, Release Notes)
- www.vulncheck.com/advisories/endian-firewall-cgi-bin-logs-proxy-cgi-date-perl-c… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-34791?
- CVE-2026-34791 is a high-severity vulnerability in Endian Firewall, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-04-02.
- How severe is CVE-2026-34791?
- High severity. CVSS v3 base score is 8.8 out of 10.