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CVE

CVE-2026-33987

FreeRDP: Persistent Cache bmpSize Desync - Heap OOB Write
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CVE

CVE-2026-33987

FreeRDP: Persistent Cache bmpSize Desync - Heap OOB Write

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, in persistentcachereadentryv3() in libfreerdp/cache/persistent.c, persistent->bmpSize is updated before winpralignedrecalloc(). If realloc fails, bmpSize is inflated while bmpData points to the old buffer. This issue has been patched in version 3.24.2.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
7.1
-
3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33987.json, https://github.com/FreeRDP/FreeRDP/commit/1a890eb43492b5eb707cb3dd6fc908f696e8fc1c, https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-ff8h-p5vc-wcwc, https://nvd.nist.gov/vuln/detail/CVE-2026-33987

Severity

7.1

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.1
EPSS Probability
0.00019%
EPSS Percentile
0.05273%
Introduced Version
0
Fix Available
3028b706908f81767d9b9c744a90778c28f57d61,3.15.0+dfsg-2.1+deb13u2,3.24.2-r0,2:3.6.3-1.amzn2023.0.10

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