CVE-2026-50217

Use‑After‑Free in Guardicore Platform Agent WFP Driver Enables Local Denial of Service via ICMPv6 Hop‑by‑Hop

Published Oct 14, 2026 CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed
Description
A use-after-free vulnerability in the Windows WFP callout driver of Akamai Guardicore Platform Agent (GPA) allows a local low-privileged user to cause a denial of service (system crash / BSOD) via an outbound ICMPv6 packet containing an IPv6 Hop-by-Hop extension header. When the IPv6 ICMP redirect policy is active, the packet is copied into a buffer that is freed but subsequently passed to a downstream filter. The size of the freed allocation is attacker-controlled (via packet length), enabling kernel pool grooming. Exploitation requires that the non-default IPv6 ICMP capture/redirect policy is enabled for the endpoint.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Akamai
Akamai guardicore Platform Agent
Vendors & Products Akamai
Akamai guardicore Platform Agent
Type Values Removed Values Added
Title Use‑After‑Free in Guardicore Platform Agent WFP Driver Enables Local Denial of Service via ICMPv6 Hop‑by‑Hop
Type Values Removed Values Added
Title Use‑After‑Free Causing System Crash in Akamai Guardicore Platform Agent
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Use‑After‑Free Causing System Crash in Akamai Guardicore Platform Agent
Type Values Removed Values Added
Description A use-after-free vulnerability in the Windows WFP callout driver of Akamai Guardicore Platform Agent (GPA) allows a local low-privileged user to cause a denial of service (system crash / BSOD) via an outbound ICMPv6 packet containing an IPv6 Hop-by-Hop extension header. When the IPv6 ICMP redirect policy is active, the packet is copied into a buffer that is freed but subsequently passed to a downstream filter. The size of the freed allocation is attacker-controlled (via packet length), enabling kernel pool grooming. Exploitation requires that the non-default IPv6 ICMP capture/redirect policy is enabled for the endpoint.
Weaknesses CWE-416
References
Metrics cvssV3_1

{'score': 4.7, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Oct 14, 2026, 5:22 PM
Reserved
Jun 4, 2026, 12:00 AM
Status
Awaiting Analysis
Published
Oct 14, 2026, 6:17 AM
Modified
Oct 16, 2026, 7:55 PM