# CVE-2026-111379: FreeRDP heap buffer overflow in persistent cache parser

Source: https://junglewise.ai/threats/cve-2026-111379-freerdp-before-3-32-0-contains-a-heap-buffer-overflow  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-16. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-111379 · Severity: high · CVSS 7.3 · Published 2026-10-16

FreeRDP is an open-source remote desktop protocol client and server used to access graphical desktop environments across networks. A heap buffer overflow in the persistent cache file parser allows a local attacker to corrupt memory by providing a malicious cache file, potentially achieving arbitrary code execution on the affected system.

Technologies: [FreeRDP Project FreeRDP](https://junglewise.ai/threats/technologies/freerdp-project-freerdp). Vendors: [FreeRDP Project](https://junglewise.ai/threats/vendors/freerdp-project).

## Quick answers

**Is CVE-2026-111379 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-111379 being exploited in the wild.

**How severe is CVE-2026-111379?** High severity, with a CVSS score of 7.3, published 16 October 2026.

**Which products and versions are affected?** FreeRDP Project FreeRDP before 3.32.0.

**Is there a fix for CVE-2026-111379?** Yes: fixed in 3.32.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-111379 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-111379?** Check whether you run FreeRDP Project FreeRDP at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 3.32.0

## Technical details

An integer wraparound vulnerability in persist_cache_get_data calculates a small wrapped size value that passes a UINT32_MAX check, then a heap buffer allocated with this truncated size is written out-of-bounds by fread using the original wrapped size. The vulnerability requires a local attacker to supply a malicious v3 persistent cache file with carefully crafted width and height values (e.g., width=3221225474, height=3) that trigger 64-bit multiplication wraparound.

## Affected products

- FreeRDP Project FreeRDP before 3.32.0

## Timeline

- 2026-10-01: disclosed: GitHub Security Advisory GHSA-945c-qq5h-jqwp published
- 2026-10-15: advisory
- 2026-10-16: other: CVE-2026-111379 published

## References

- [https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-945c-qq5h-jqwp](https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-945c-qq5h-jqwp)
- [https://www.vulncheck.com/advisories/freerdp-before-3.32.0-heap-buffer-overflow-via-persistent-cache-read-entry-v3](https://www.vulncheck.com/advisories/freerdp-before-3.32.0-heap-buffer-overflow-via-persistent-cache-read-entry-v3)

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