# CVE-2025-59595: Denial of service in Secure Access

> An attacker can crash the Secure Access server by sending a crafted packet when the system is in a non-default configuration.

- **Severity:** High 8.2 (`CVSS:4.0/AV:N/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:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Nov 2025
- **Updated:** 1 Dec 2025
- **Also known as:** GHSA-xmpw-v77r-v8qg

## What is CVE-2025-59595?

CVE-2025-59595 is a high-severity denial of service vulnerability in Absolute Secure Access, published on 4 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

CVE-2025-59595 is an internally discovered denial of service 
vulnerability in versions of Secure Access prior to 14.12. An attacker 
can send a specially crafted packet to a server in a non-default 
configuration and cause the server to crash.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2025-59595?

It affects 1 product.


Products: Absolute Secure Access.

## How do I fix CVE-2025-59595?

No fix has been published for CVE-2025-59595 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-59595 being exploited?

There is no known exploitation of CVE-2025-59595 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-2025-59595 and fix it if it is affected.

What it is: CVE-2025-59595 is a high-severity denial of service vulnerability in Absolute Secure Access, published on 4 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-59595 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-2025-59595/ (Markdown: https://insights.sbomify.com/CVE-2025-59595/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-59595
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-59595
- OSV: https://osv.dev/vulnerability/CVE-2025-59595

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-59595/
Summaries are generated and may contain mistakes; the official description above is the record.