CVE-2026-48131CWE-122

VPND IKE Fragment Reassembly - Heap Out-of-Bounds Write via Sequence Number Zero

High · published May 26, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
33.5
In the wild
Unconfirmed
What it is

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).

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00404 · 33.5th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-05-26T12:56Z
EPSS history
Timeline
  • 26 MAY 12:56Z
    VPND IKE Fragment Reassembly - Heap Out-of-Bounds Write via Sequence Number Zero
    cvelistv5