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CVE-2026-29775

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, a client-side heap out-of-bounds read/write occurs in FreeRDP's bitmap cache subsystem due to an off-by-one boundary check in bitmap_cache_put. A malicious server can send a CACHE_BITMAP_ORDER (Rev1) with cacheId equal to maxCells, bypassing the guard and accessing cells[] one element past the allocated array. This vulnerability is fixed in 3.24.0.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:57f09864c269d86e526c301a12704b362d038f77b46cc20c40c4e1ca0918b513
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"FreeRDP","vendor":"FreeRDP","versions":[{"status":"affected","version":"< 3.24.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d1623f248120c75f2be26a51a64d42043dc556215310914276790e8bb4dce8c4 · sha256:4b1a3f8e2351bca8… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d1623f248120c75f2be26a51a64d42043dc556215310914276790e8bb4dce8c4 · sha256:4b1a3f8e2351bca8… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d1623f248120c75f2be26a51a64d42043dc556215310914276790e8bb4dce8c4 · sha256:4b1a3f8e2351bca8… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/FreeRDP/FreeRDP/commit/ffad58fd2b329efd81a3239e9d7e3c927b8e503f","tags":["x_refsource_MISC"],"url":"https://github.com/FreeRDP/FreeRDP/commit/ffad58fd2b329efd81a3239e9d7e3c927b8e503f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d1623f248120c75f2be26a51a64d42043dc556215310914276790e8bb4dce8c4 · sha256:4b1a3f8e2351bca8… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h666-rfw3-jhvj"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d1623f248120c75f2be26a51a64d42043dc556215310914276790e8bb4dce8c4 · sha256:4b1a3f8e2351bca8… · /containers/adp/0/references/0
{"name":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h666-rfw3-jhvj","tags":["x_refsource_CONFIRM"],"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h666-rfw3-jhvj"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d1623f248120c75f2be26a51a64d42043dc556215310914276790e8bb4dce8c4 · sha256:4b1a3f8e2351bca8… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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