[NEW] [high] Absolute Secure Access: Multiple vulnerabilities enable Denial of Service

highCVE-2026-55402 CVE-2026-55401 CVE-2026-55400

A remote authenticated attacker can exploit multiple vulnerabilities in Absolute Secure Access to conduct a Denial of Service attack.

CSIRTS triage

vendor: Absolute product: Absolute Secure Access Denial of service

What: Multiple vulnerabilities enable remote authenticated attackers to conduct denial of service attacks.
Who is affected: Authenticated users of Absolute Secure Access deployments.
Urgency: High urgency; denial of service by authenticated users can disrupt service availability.
Action: Apply patches for CVE-2026-55402, CVE-2026-55401, and CVE-2026-55400.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-08-14
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2830

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-554020.31% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-554010.31% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-554000.23% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 14% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-55402	coverage & exploitation status	NVD · CVE.org
CVE-2026-55401	coverage & exploitation status	NVD · CVE.org
CVE-2026-55400	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Absolute Secure Access

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

medium[NEW] [medium] Absolute Secure Access: Multiple vulnerabilitiescert-bund · 2026-07-16