What’s Vulnerable › Vulnerabilities

CVE-2026-109252: FreeRDP from 3.9.0 before 3.32.0 RDPEAR NULL Pointer Dereference via KERB_RPC_INTERNAL_NAME

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-12 · updated 2026-10-15
• Weakness: CWE-476

Description

FreeRDP from 3.9.0 before 3.32.0 contains a NULL pointer dereference vulnerability in the RDPEAR NDR reader that allows malicious servers to crash clients via truncated KERB_RPC_INTERNAL_NAME data. Attackers can send a CreateApReqAuthenticatorReq with NameCount of two or more ending before the Names pointer, causing cleanup to dereference a null base and terminate the client.

Affected products

• FreeRDP: from 3.9.0 before 3.32.0 — fixed in 3.32.0

How to fix

Upgrade to a fixed version: FreeRDP 3.32.0. Check the vendor advisory for mitigations.

References

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-93g7-296p-j77j
• https://www.vulncheck.com/advisories/freerdp-from-3.9.0-before-3.32.0-rdpear-null-pointer-dereference-via-kerb-rpc-internal-name
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-93g7-296p-j77j

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