CVE-2026-54345CWE-191CWE-770denial-of-service

CVE-2026-54345

High · published July 28, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
55.8
In the wild
Unconfirmed
What it is

gopacket provides packet processing capabilities for Go. In version 1.6.0 and earlier, the Diameter AVP decoder computes an AVP data length by subtracting a fixed header size from an attacker-controlled AVP Length field, so a vendor-flagged AVP whose Length is smaller than the 12-byte header underflows the unsigned 32-bit value and drives an unbounded allocation of roughly 4 GiB, and two such messages in succession OOM-kill a collector, causing an unauthenticated remote denial of service. This issue is fixed in version 1.6.1.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00790 · 55.8th percentile
Weaknesses
CWE-191 · Integer Underflow (Wrap or Wraparound); CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-07-28T21:16Z
Affected products (1)
ProductVersionsFixed in
gopacket/gopacket< 1.6.11.6.1
References (4)
https://github.com/gopacket/gopacket/commit/145859d0eaee1a6f5925ffb93851c976449c3311 · [email protected]https://github.com/gopacket/gopacket/releases/tag/v1.6.1 · [email protected]https://github.com/gopacket/gopacket/security/advisories/GHSA-6r28-9ppf-4hj5 · [email protected]https://github.com/gopacket/gopacket/security/advisories/GHSA-6r28-9ppf-4hj5 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 28 JUL 16:14Z
    GoPacket's Diameter AVP decoder: uint32 underflow on vendor header size leads to unbounded ~4 GiB allocation (unauthenticated remote DoS)
    cvelistv5