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TI-2026-20120 Aliases CVE-2026-24935GHSA-mmqq-p5mv-jc88

An improper certificate validation vulnerability was found in a third-party NAT traversal module.

Priority LOW 27CWE-295Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-295.

Summary

A third-party NAT traversal module fails to validate SSL/TLS certificates when connecting to the signaling server. While subsequent access to device services requires additional authentication, a Man-in-the-Middle (MitM) attacker can intercept or redirect the NAT tunnel establishment. This could allow an attacker to disrupt service availability or facilitate further targeted attacks by acting as a proxy between the user and the device services. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.ROF1 as well as from ADM 5.0.0 through ADM 5.1.1.RCI1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00154 4th 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
ASUSTORADM4.1.0 – 4.3.3.ROF1; 5.0.0 – 5.1.1.RCI1—No fix listedCNA
  • ADM VendorASUSTOR Affected 4.1.0 – 4.3.3.ROF1; 5.0.0 – 5.1.1.RCI1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:asustor:data_master:*:*:*:*:*:*:*:*4.1.0.rhu2 – 4.3.3.rof1; 5.0.0.ra82 to before 5.1.2.re51VulnerableASUSTOR
  • cpe:2.3:o:asustor:data_master:*:*:*:*:*:*:*:* Versions 4.1.0.rhu2 – 4.3.3.rof1; 5.0.0.ra82 to before 5.1.2.re51 Vulnerable ·ASUSTOR

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    ASUSTOR ADM — asustor.com/security/security_advisory_detail?id=50

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2026-20118 An improper certificate validation vulnerability was found in ADM while sending HTTPS requests to the server.Priority LOW 38
    • TI-2026-20117 An improper certificate validation vulnerability was found in ADM while updating the DDNS settings.Priority LOW 38
    • TI-2026-20119 Improper certificate validation in ASUSTOR ADMPriority LOW 27
    Show all 4 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-24935
  2. 2026-10-03 Alias added: GHSA-mmqq-p5mv-jc88

References

Advisory 1

  • TI-2026-05831 OS command injection in ASUSTOR ADM CVSS 4.0CRITICAL 9.4
  • TI-2026-20121 An improper input validation vulnerability was found in ADM while joining a AD Domain. CVSS 4.0CRITICAL 9.5
  • TI-2018-08830 OS command injection in snmp.cgi in ASUSTOR ADM version 3.1.1 allows attackers to execute… CVSS 3.0CRITICAL 9.8
  • TI-2018-08834 OS command injection in group.cgi in ASUSTOR ADM version 3.1.1 allows attackers to… CVSS 3.0HIGH 8.8
  • TI-2018-08833 OS Command Injection in upload.cgi in ASUSTOR ADM version 3.1.1 allows attackers to… CVSS 3.0HIGH 8.8
  • TI-2018-08829 OS command injection in user.cgi in ASUSTOR ADM version 3.1.1 allows attackers to execute… CVSS 3.0HIGH 8.8
See all 44 →

Sources

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