Out-of-bounds read via incomplete bitmap bounds checks
Published Apr 22, 2024 · Updated Nov 3, 2025
Out-of-bounds read in FreeRDP before 2.11.6 and 3.0.0 through 3.4.0 allows remote attackers to read memory via crafted bitmap data. The interleaved bitmap decoder reads run-length headers, pixels, and bitmasks without ensuring that every required byte remains in the source buffer. Exposure requires the client to use the /bpp:32 legacy GDI drawing path while processing graphics data from a malicious or compromised RDP server.
Summary
What happened
Out-of-bounds read in FreeRDP before 2.11.6 and 3.0.0 through 3.4.0 allows remote attackers to read memory via crafted bitmap data. The interleaved bitmap decoder reads run-length headers, pixels, and bitmasks without ensuring that every required byte remains in the source buffer. Exposure requires the client to use the /bpp:32 legacy GDI drawing path while processing graphics data from a malicious or compromised RDP server.
The record
- CVE
- CVE-2024-32460
- Published
- Apr 22, 2024
- Updated
- Nov 3, 2025
- Vendor
- FreeRDP
- Product
- FreeRDP
- Classifications
- CWE-125
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 22, 2024CVE publishedPublication date reported by the CVE source.
- Nov 3, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=2.11.6
- Affected versionversion=< 2.11.6
- Affected versionversion=>= 3.0.0, 3.5.0
- Affected versionversion=3.0.0 <3.5.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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