CVE-2026-54345
7.5 · HIGHOverview
CVE-2026-54345 is a high-severity vulnerability affecting gopacket gopacket. It was published on July 28, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from gopacket. Update gopacket to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| gopacket | gopacket | >= 0, < 1.6.1 | Affected |
References
Frequently Asked Questions
What is CVE-2026-54345?
CVE-2026-54345 is a high-severity vulnerability affecting gopacket gopacket. It was published on July 28, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2026-54345?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-54345?
Check the references section for vendor advisories and patches from gopacket. Update gopacket to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-54345?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-54345 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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