# CVE-2025-59596: Denial of service in Secure Access

> Adjacent network attackers can crash the Secure Access Windows client by sending crafted packets when a local networking policy is active.

- **Severity:** Medium 6.0 (`CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Nov 2025
- **Updated:** 5 Nov 2025
- **Also known as:** GHSA-r879-mf96-p9qf

## What is CVE-2025-59596?

CVE-2025-59596 is a medium-severity denial of service vulnerability in Absolute Secure Access, published on 4 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

CVE-2025-59596 is a denial-of-service vulnerability in Secure Access 
Windows client versions 12.0 to 14.10 that is addressed in version 
14.12. If a local networking policy is active, attackers on an adjacent 
network may be able to send a crafted packet and cause the client system
 to crash.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2025-59596?

It affects 1 product.


Products: Absolute Secure Access.

## How do I fix CVE-2025-59596?

No fix has been published for CVE-2025-59596 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-59596 being exploited?

There is no known exploitation of CVE-2025-59596 in the wild and no public exploit code.

## Other vulnerabilities in Absolute Secure Access

- [CVE-2026-55402](https://insights.sbomify.com/CVE-2026-55402/): Denial of service in Secure Access (high 8.7)
- [CVE-2026-33445](https://insights.sbomify.com/CVE-2026-33445/): Memory management vulnerability in Secure Access servers (high 8.7)
- [CVE-2025-49080](https://insights.sbomify.com/CVE-2025-49080/): Memory management vulnerability in Absolute Secure Access server versions 9.0 to 13.54 (high 8.7)
- [CVE-2026-40952](https://insights.sbomify.com/CVE-2026-40952/): Privilge misconfiguration in Secure Access installers (high 8.5)
- [CVE-2026-33451](https://insights.sbomify.com/CVE-2026-33451/): Arbitrary read/write vulnerability in Windows clients prior to 14.50 (high 8.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-59596 and fix it if it is affected.

What it is: CVE-2025-59596 is a medium-severity denial of service vulnerability in Absolute Secure Access, published on 4 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-59596 in the wild and no public exploit code.

Affected product: Absolute Secure Access. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-59596/ (Markdown: https://insights.sbomify.com/CVE-2025-59596/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-59596
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-59596
- OSV: https://osv.dev/vulnerability/CVE-2025-59596

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-59596/
Summaries are generated and may contain mistakes; the official description above is the record.