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TI-2026-39970 Aliases CVE-2026-55400GHSA-rvwx-fgxf-5vwq

Integer overflow in Absolute Security Secure Access

Priority LOW 27CWE-190Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-190 and the CVSS impact.

Summary

CVE-2026-55400 is an integer underflow in Secure Access servers prior to version 14.57. Attackers with an authenticated session can send specially crafted traffic to a server in a non-default configuration and cause a persistent denial of service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0037 31st percentileScored 2026-11-07
Fix Fixed Secure Access (Absolute Security): 14.57

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
Absolute SecuritySecure Accessbefore 14.5714.57Patch availableCNA
  • Secure Access VendorAbsolute Security Affected before 14.57 Fixed in 14.57 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:absolute:secure_access:*:*:*:*:*:*:*:*before 14.57VulnerableAbsolute Security
  • cpe:2.3:a:absolute:secure_access:*:*:*:*:*:*:*:* Versions before 14.57 Vulnerable ·Absolute Security

Remediation

  • Fix · CNA Secure Access (Absolute Security) Fixed in 14.57

Fixed in the same release

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

  • Release ·

    Absolute Security Secure Access 14.57

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2026-39972 Out-of-bounds read in Absolute Security Secure AccessPriority LOW 38
    • TI-2026-39971 NULL pointer dereference in Absolute Security Secure AccessPriority LOW 37
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-55400
  2. 2026-10-03 Alias added: GHSA-rvwx-fgxf-5vwq

References

Advisory 1

  • TI-2026-25841 Memory management vulnerability in Secure Access servers CVSS 4.0HIGH 8.7
  • TI-2026-39972 Out-of-bounds read in Absolute Security Secure Access CVSS 4.0HIGH 8.7
  • TI-2026-29603 Privilge misconfiguration in Secure Access installers CVSS 4.0HIGH 8.5
  • TI-2026-25847 Arbitrary read/write vulnerability in Windows clients prior to 14.50 CVSS 4.0HIGH 8.5
  • TI-2025-31193 Memory management vulnerability in Absolute Secure Access server versions 9.0 to 13.54 CVSS 4.0HIGH 8.7
  • TI-2026-39971 NULL pointer dereference in Absolute Security Secure Access CVSS 4.0MEDIUM 6.9
See all 53 →

Sources

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