CVE Explorer

CVE-2026-23732

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, FastGlyph parsing trusts `cbData`/remaining length and never validates against the minimum size implied by `cx/cy`. A malicious server can trigger a client‑side global buffer overflow, causing a crash (DoS). Version 3.21.0 contains a patch for the issue.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f6478265227e9dfcfb706a1399e483998ba5331a31b998d436c1ab92240a93ce

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"FreeRDP","vendor":"FreeRDP","versions":[{"status":"affected","version":"< 3.21.0"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:1c07e18df4c13a913591ea4ba909293f0cf40c45d85f13810ca02dd7c4658a5e · sha256:f58c7d1ff299c01e… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.5,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:1c07e18df4c13a913591ea4ba909293f0cf40c45d85f13810ca02dd7c4658a5e · sha256:f58c7d1ff299c01e… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:1c07e18df4c13a913591ea4ba909293f0cf40c45d85f13810ca02dd7c4658a5e · sha256:f58c7d1ff299c01e… · /containers/cna/problemTypes/0/descriptions/0

Source references

7 source assertions

{"name":"https://github.com/FreeRDP/FreeRDP/blob/f96ee2a6dd02739325c2a4e36a14978b561f00ea/libfreerdp/cache/glyph.c#L463-L480","tags":["x_refsource_MISC"],"url":"https://github.com/FreeRDP/FreeRDP/blob/f96ee2a6dd02739325c2a4e36a14978b561f00ea/libfreerdp/cache/glyph.c#L463-L480"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1c07e18df4c13a913591ea4ba909293f0cf40c45d85f13810ca02dd7c4658a5e · sha256:f58c7d1ff299c01e… · /containers/cna/references/1

{"name":"https://github.com/FreeRDP/FreeRDP/blob/f96ee2a6dd02739325c2a4e36a14978b561f00ea/libfreerdp/codec/color.c#L261-L277","tags":["x_refsource_MISC"],"url":"https://github.com/FreeRDP/FreeRDP/blob/f96ee2a6dd02739325c2a4e36a14978b561f00ea/libfreerdp/codec/color.c#L261-L277"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1c07e18df4c13a913591ea4ba909293f0cf40c45d85f13810ca02dd7c4658a5e · sha256:f58c7d1ff299c01e… · /containers/cna/references/2

{"name":"https://github.com/FreeRDP/FreeRDP/blob/f96ee2a6dd02739325c2a4e36a14978b561f00ea/libfreerdp/core/graphics.c#L138","tags":["x_refsource_MISC"],"url":"https://github.com/FreeRDP/FreeRDP/blob/f96ee2a6dd02739325c2a4e36a14978b561f00ea/libfreerdp/core/graphics.c#L138"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1c07e18df4c13a913591ea4ba909293f0cf40c45d85f13810ca02dd7c4658a5e · sha256:f58c7d1ff299c01e… · /containers/cna/references/3

{"name":"https://github.com/FreeRDP/FreeRDP/blob/f96ee2a6dd02739325c2a4e36a14978b561f00ea/libfreerdp/core/orders.c#L2186C17-L2199","tags":["x_refsource_MISC"],"url":"https://github.com/FreeRDP/FreeRDP/blob/f96ee2a6dd02739325c2a4e36a14978b561f00ea/libfreerdp/core/orders.c#L2186C17-L2199"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1c07e18df4c13a913591ea4ba909293f0cf40c45d85f13810ca02dd7c4658a5e · sha256:f58c7d1ff299c01e… · /containers/cna/references/4

{"name":"https://github.com/FreeRDP/FreeRDP/releases/tag/3.21.0","tags":["x_refsource_MISC"],"url":"https://github.com/FreeRDP/FreeRDP/releases/tag/3.21.0"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1c07e18df4c13a913591ea4ba909293f0cf40c45d85f13810ca02dd7c4658a5e · sha256:f58c7d1ff299c01e… · /containers/cna/references/5

{"tags":["exploit"],"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7qxp-j2fj-c3pp"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1c07e18df4c13a913591ea4ba909293f0cf40c45d85f13810ca02dd7c4658a5e · sha256:f58c7d1ff299c01e… · /containers/adp/0/references/0

{"name":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7qxp-j2fj-c3pp","tags":["x_refsource_CONFIRM"],"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-7qxp-j2fj-c3pp"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:1c07e18df4c13a913591ea4ba909293f0cf40c45d85f13810ca02dd7c4658a5e · sha256:f58c7d1ff299c01e… · /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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