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CVE-2026-29774

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, a client-side heap buffer overflow occurs in the FreeRDP client's AVC420/AVC444 YUV-to-RGB conversion path due to missing horizontal bounds validation of H.264 metablock regionRects coordinates. In yuv.c, the clamp() function (line 347) only validates top/bottom against the surface/YUV height, but never checks left/right against the surface width. When avc420_yuv_to_rgb (line 67) computes destination and source po
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:429a7d3139f16a66f11f758db3037efc4f93bc443cf3967273c0606b3035ac08
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:b183dccec6bb0667001c59caa73b1d6dea5e3b8d7ccaab73eb2c003b06311fc9 · sha256:904f196ec0077c7b… · /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:b183dccec6bb0667001c59caa73b1d6dea5e3b8d7ccaab73eb2c003b06311fc9 · sha256:904f196ec0077c7b… · /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:b183dccec6bb0667001c59caa73b1d6dea5e3b8d7ccaab73eb2c003b06311fc9 · sha256:904f196ec0077c7b… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/FreeRDP/FreeRDP/commit/6482b7a92fff3959582cef052d1967ad6bde3738","tags":["x_refsource_MISC"],"url":"https://github.com/FreeRDP/FreeRDP/commit/6482b7a92fff3959582cef052d1967ad6bde3738"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b183dccec6bb0667001c59caa73b1d6dea5e3b8d7ccaab73eb2c003b06311fc9 · sha256:904f196ec0077c7b… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5q35-hv9x-7794"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b183dccec6bb0667001c59caa73b1d6dea5e3b8d7ccaab73eb2c003b06311fc9 · sha256:904f196ec0077c7b… · /containers/adp/0/references/0
{"name":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5q35-hv9x-7794","tags":["x_refsource_CONFIRM"],"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5q35-hv9x-7794"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b183dccec6bb0667001c59caa73b1d6dea5e3b8d7ccaab73eb2c003b06311fc9 · sha256:904f196ec0077c7b… · /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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