# CVE-2026-33449: Message handler buffer overflow in clients prior to 14.50

> A buffer overflow in the Secure Access client allows attackers controlling a server to cause denial of service via crafted messages.

- **Severity:** Low 2.3 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 30 Apr 2026
- **Updated:** 1 May 2026
- **Also known as:** GHSA-f2pc-fmcq-2g57

## What is CVE-2026-33449?

CVE-2026-33449 is a low-severity memory corruption vulnerability in Absolute Secure Access, published on 30 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

CVE-2026-33449 is a buffer overflow in a message handling function of 
the Secure Access client prior to 14.50. Attackers with control of 
a modified server can send a cryptographically valid message to the 
client, overwriting a small portion of memory conceivably leading to a 
denial of service.

Weakness: CWE-121 (Stack-based Buffer Overflow)

## Which versions are affected by CVE-2026-33449?

It affects 1 product.


Products: Absolute Secure Access.

## How do I fix CVE-2026-33449?

No fix has been published for CVE-2026-33449 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-33449 being exploited?

There is no known exploitation of CVE-2026-33449 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-2026-33449 and fix it if it is affected.

What it is: CVE-2026-33449 is a low-severity memory corruption vulnerability in Absolute Secure Access, published on 30 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-33449 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-2026-33449/ (Markdown: https://insights.sbomify.com/CVE-2026-33449/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-33449
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-33449
- OSV: https://osv.dev/vulnerability/CVE-2026-33449

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-33449/
Summaries are generated and may contain mistakes; the official description above is the record.