VPND IKE Fragment Reassembly - Heap Out-of-Bounds Write via Sequence Number Zero
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 2.7%
exploitation probability
2.7%top 16% of all CVEs
observed exploitation
nono source reports it
The VPN service may mishandle an unexpected IKE fragment value received on the IKE port 500/UDP during the early stage of a connection attempt. This can cause the service to terminate unexpectedly, resulting in denial of service (temporary disruption of VPN-related functionality).
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
checkpoint · Quantum Security Gateway