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TI-2026-27034 Aliases CVE-2026-34790GHSA-757j-pp37-wg8v

Endian Firewall /cgi-bin/backup.cgi remove ARCHIVE Directory Traversal

Priority LOW 32CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · High · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Endian Firewall version 3.3.25 and prior allow authenticated users to delete arbitrary files via directory traversal in the remove ARCHIVE parameter to /cgi-bin/backup.cgi. The remove ARCHIVE parameter value is used to construct a file path without sanitization of directory traversal sequences, which is then passed to an unlink() call.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00653 51st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
EndianEndian Firewallup to 3.3.25—No fix listedCNA
  • Endian Firewall VendorEndian Affected up to 3.3.25 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:endian:firewall_community:*:*:*:*:*:*:*:*up to 3.3.25VulnerableEndian
  • cpe:2.3:a:endian:firewall_community:*:*:*:*:*:*:*:* Versions up to 3.3.25 Vulnerable ·Endian

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-34790
  2. 2026-10-03 Alias added: GHSA-757j-pp37-wg8v
  3. 2026-10-25 EPSS moved to the below the 50th percentile
  4. 2026-10-29 EPSS moved to the 50th–90th percentile

References

Other 1

  • TI-2026-27040 Endian Firewall /cgi-bin/logs_openvpn.cgi DATE Perl Command Injection CVSS 4.0HIGH 8.7
  • TI-2026-27039 Endian Firewall /cgi-bin/logs_log.cgi DATE Perl Command Injection CVSS 4.0HIGH 8.7
  • TI-2021-08747 Endian Firewall Community (aka EFW) 3.3.2 allows remote authenticated users to execute… CVSS 3.1HIGH 8.8
  • TI-2026-27041 Endian Firewall /cgi-bin/logs_smtp.cgi DATE Perl Command Injection CVSS 4.0HIGH 8.7
  • TI-2026-27038 Endian Firewall /cgi-bin/logs_ids.cgi DATE Perl Command Injection CVSS 4.0HIGH 8.7
  • TI-2026-27037 Endian Firewall /cgi-bin/logs_firewall.cgi DATE Perl Command Injection CVSS 4.0HIGH 8.7
See all 34 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences