CVE-2026-34791 | Endian Firewall 3.3.25 Regular Expression /cgi-bin/logs_proxy.cgi open Date os command injection

VDB-354894 · CVE-2026-34791 · GCVE-0-2026-34791 ENDIAN FIREWALL 3.3.25 REGULAR EXPRESSION /CGI-BIN/LOGS_PROXY.CGI OPEN DATE OS COMMAND INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 8.8 $0-$5k 0.17+ Summaryinfo A vulnerability categorized as critical has been discovered in Endian Firewall 3.3.25. Affected by this issue is the function Open of the file /cgi-bin/logs_proxy.cgi of the component Regular Expression Handler. The manipulation of the argument Date results in os command injection. This vulnerability is cataloged as CVE-2026-34791. The attack may be launched remotely. There is no exploit available. Detailsinfo A vulnerability was found in Endian Firewall 3.3.25. It has been classified as critical. Affected is the function open of the file /cgi-bin/logs_proxy.cgi of the component Regular Expression Handler. The manipulation of the argument DATE with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes: 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. The weakness was shared by Alex Williams. The advisory is available at help.endian.com. This vulnerability is traded as CVE-2026-34791 since 03/30/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/02/2026). This vulnerability is assigned to T1202 by the MITRE ATT&CK project. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type Firewall Software Vendor Endian Name Firewall Version 3.3.25 CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 8.8 VulDB Meta Temp Score: 8.8 VulDB Base Score: 8.8 VulDB Temp Score: 8.8 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 8.8 CNA Vector (VulnCheck): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Os command injection CWE: CWE-78 / CWE-77 / CWE-74 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/30/2026 CVE reserved 04/02/2026 +3 days Advisory disclosed 04/02/2026 +0 days VulDB entry created 04/02/2026 +0 days VulDB entry last update Sourcesinfo Advisory: help.endian.com Researcher: Alex Williams Status: Confirmed CVE: CVE-2026-34791 (🔒) GCVE (CVE): GCVE-0-2026-34791 GCVE (VulDB): GCVE-100-354894 Entryinfo Created: 04/02/2026 17:26 Changes: 04/02/2026 17:26 (79) Complete: 🔍 Cache ID: 99:73F:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸