SEPTEMBER 20, 2026
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Case File

CVE-2026-54345

HIGH · CVSS 7.5 EPSS 0.51% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-28 · Last synced 2026-08-27

CyberRota Analysis

AI-Generated

The gopacket library, used for packet processing in Go, is vulnerable in versions 1.6.0 and earlier due to a flaw in the Diameter AVP decoder that allows an attacker to exploit an underflow condition, leading to unbounded memory allocation and potential out-of-memory (OOM) conditions. This results in an unauthenticated remote denial of service, which can crash the affected service. Organizations utilizing gopacket for network processing should prioritize upgrading to version 1.6.1 to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-54345
Severity
HIGH
CVSS
7.5
EPSS
0.51%

Original NVD Description

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.

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