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VulnerabilityPublished

CVE-2026-55400: Absolute Security Secure Access · Integer Overflow

Affects Absolute Security Secure AccessSource CVE Database V5

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Not known to be exploited · CVSS 6.0 Medium : upgrade to 14.57 when convenient.

Data as of 9 Nov 2026, 23:24 UTC

CVSS 4.0 base score
6.0Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 14.57
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.

What to do

Upgrade Absolute Security Secure Access to 14.57.

Affected software

ProductAffectedFixed in
Absolute SecuritySecure AccessAffected
  • <14.57
Fixed in
  • 14.57

AI-suggested

Upgrade Secure Access servers to version 14.57 or later where this vulnerability is fixed. Since the vendor advisory does not provide a patch link but specifies the fixed version, applying this official fix is the recommended remediation. No alternative mitigations or workarounds are provided.

Description

CVE-2026-55400 is an integer underflow vulnerability in Absolute Security Secure Access servers prior to version 14.57. An attacker with an authenticated session can send specially crafted traffic to a server configured in a non-default way, causing a persistent denial of service. The vulnerability has a medium severity rating with a CVSS 4.0 base score of 6. No known exploits are reported in the wild. The issue affects versions from initial releases up to but not including 14.57.

References

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