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CVE-2026-67292

FreeRDP before 3.29.0 contains a buffer over-disclosure vulnerability in the gateway WebSocket transport (libfreerdp/core/gateway/websocket.c). The client's Pong reply reuses a fixed 1024-byte response stream whose length is not sealed to the actual received Ping payload, so a malicious gateway/WebSocket peer sending a non-empty Ping control frame causes the client to reply with an overlong Pong that discloses bytes beyond the received payload (the peer receives the masking key and can unmask th
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:35356c843af4d2750cb8fcd3cf7cae5f67357c92370791ca81b623664defa3f6
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c07d4b5e42397f2ad747ba8bf3d39cfaa27d0d99d8bd9ccfeeb2ad9428e2a11b · sha256:39aeb0b872514219… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpac…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c07d4b5e42397f2ad747ba8bf3d39cfaa27d0d99d8bd9ccfeeb2ad9428e2a11b · sha256:39aeb0b872514219… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"FreeRDP","vendor":"FreeRDP","versions":[{"lessThan":"3.29.0","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"3.29.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c07d4b5e42397f2ad747ba8bf3d39cfaa27d0d99d8bd9ccfeeb2ad9428e2a11b · sha256:39aeb0b872514219… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c07d4b5e42397f2ad747ba8bf3d39cfaa27d0d99d8bd9ccfeeb2ad9428e2a11b · sha256:39aeb0b872514219… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpac…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c07d4b5e42397f2ad747ba8bf3d39cfaa27d0d99d8bd9ccfeeb2ad9428e2a11b · sha256:39aeb0b872514219… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-130","description":"Improper Handling of Length Parameter Inconsistency","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c07d4b5e42397f2ad747ba8bf3d39cfaa27d0d99d8bd9ccfeeb2ad9428e2a11b · sha256:39aeb0b872514219… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"Patch Commit","tags":["patch"],"url":"https://github.com/FreeRDP/FreeRDP/commit/f3b4347105114fe7453828736bea069999af319f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c07d4b5e42397f2ad747ba8bf3d39cfaa27d0d99d8bd9ccfeeb2ad9428e2a11b · sha256:39aeb0b872514219… · /containers/cna/references/1
{"name":"GitHub Security Advisory (GHSA-8v6m-2cmc-chx9)","tags":["vendor-advisory"],"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8v6m-2cmc-chx9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c07d4b5e42397f2ad747ba8bf3d39cfaa27d0d99d8bd9ccfeeb2ad9428e2a11b · sha256:39aeb0b872514219… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8v6m-2cmc-chx9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c07d4b5e42397f2ad747ba8bf3d39cfaa27d0d99d8bd9ccfeeb2ad9428e2a11b · sha256:39aeb0b872514219… · /containers/adp/0/references/0
{"name":"VulnCheck Advisory: FreeRDP before 3.29.0 WebSocket Ping Buffer Over-disclosure","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/freerdp-before-websocket-ping-buffer-over-disclosure"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c07d4b5e42397f2ad747ba8bf3d39cfaa27d0d99d8bd9ccfeeb2ad9428e2a11b · sha256:39aeb0b872514219… · /containers/cna/references/2

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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