[NEW] [high] Absolute Secure Access: Multiple vulnerabilities enable Denial of Service
A remote authenticated attacker can exploit multiple vulnerabilities in Absolute Secure Access to conduct a Denial of Service attack.
CSIRTS triage
- 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
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-2026-554020.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 21% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-554010.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 22% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-554000.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 18% 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.
- unknownCVE-2026-55402: CVE-2026-55402 is an out of bounds read vulnerability in Secure Access servers prior to versio…nvd
- unknownCVE-2026-55401: CVE-2026-55401 is a null dereference vulnerability on the load-balancing sub-system of Secure …nvd
- unknownCVE-2026-55400: CVE-2026-55400 is an integer underflow in Secure Access servers prior to version 14.57. Attack…nvd
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
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