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PatchSiren cyber security CVE debrief

CVE-2026-55399 Absolute CVE debrief

CVE-2026-55399 is a resource exhaustion vulnerability in the Secure Access publisher prior to 14.55. The vulnerability allows attackers with valid credentials to the Secure Access tunnel to create a non-persistent DoS against the publisher. This type of vulnerability can lead to a denial of service, impacting the availability of the system. Users of Absolute Secure Access prior to version 14.55 should apply the patch to prevent this vulnerability. The CVSS score for this vulnerability is 5.1, indicating a medium severity. The vulnerability is non-persistent, meaning it does not require a restart or a change in configuration to be exploited.

Vendor
Absolute
Product
Secure Access
CVSS
MEDIUM 5.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-15
Original CVE updated
2026-07-16
Advisory published
2026-07-15
Advisory updated
2026-07-16

Who should care

Users of Absolute Secure Access prior to version 14.55 should apply the patch to prevent a resource exhaustion vulnerability. This vulnerability can impact the availability of the system, and users should review their current version and apply the necessary updates. Security teams should also monitor for unusual activity that may indicate an attempted DoS attack.

Technical summary

CVE-2026-55399 is a resource exhaustion vulnerability in the Secure Access publisher prior to 14.55. The vulnerability allows attackers with valid credentials to the Secure Access tunnel to create a non-persistent DoS against the publisher. The CVSS score for this vulnerability is 5.1, indicating a medium severity. The vulnerability can be mitigated by applying the patch to upgrade Secure Access to version 14.55 or later.

Defensive priority

Medium priority due to the CVSS score of 5.1 and the potential for a non-persistent DoS attack.

Recommended defensive actions

  • Apply the patch to upgrade Secure Access to version 14.55 or later.
  • Restrict access to the Secure Access tunnel to only necessary users.
  • Monitor for unusual activity that may indicate an attempted DoS attack.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review.

Evidence notes

The CVE record was published on 2026-07-15T21:16:55.083Z and last modified on 2026-07-16T16:25:48.123Z. The NVD entry is currently Analyzed. The source details are limited, and defenders should verify the affected scope and severity with the vendor. The vulnerability allows attackers with valid credentials to the Secure Access tunnel to create a non-persistent DoS against the publisher. Evidence is based on the CVE record and NVD entry.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-15T21:16:55.083Z and has not been modified since then. The NVD entry is currently Analyzed.