High severity · published Aug 2, 2026
CVE-2026-68580
FreeRDP before 3.29.0 Integer Overflow via Audio Input Channel
7.5
CVSS
0.3%
EPSS
No
On KEV
Description
FreeRDP before 3.29.0 contains integer overflow vulnerabilities in the audio input redirection channel (audin) across ALSA, sndio, WinMM, and OpenSL ES backends that fail to validate the FramesPerPacket parameter from RDP servers. Attackers can supply a malicious FramesPerPacket value causing allocation size wraparound, resulting in heap-based buffer overflow on ALSA or denial of service on all platforms.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
FreeRDP · FreeRDP
before 3.29.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-68580
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-68580
Exploit
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-69xf-pqrw-596x
Third Party Advisory
https://www.vulncheck.com/advisories/freerdp-before-integer-overflow-via-audio-input-channel
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