What’s Vulnerable › Vulnerabilities

CVE-2024-7595: GRE and GRE6 Protocols (RFC2784) do not validate or verify the source of a network packet

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-05 · updated 2026-06-17

Description

GRE and GRE6 Protocols (RFC2784) do not validate or verify the source of a network packet allowing an attacker to spoof and route arbitrary traffic via an exposed network interface that can lead to spoofing, access control bypass, and other unexpected network behaviors. This can be considered similar to CVE-2020-10136.

Affected products

• IETF Generic Routing Encapsulation: all versions
• IETF Generic Routing Encapsulation6: all versions

References

• https://datatracker.ietf.org/doc/html/rfc2784
• https://www.rfc-editor.org/rfc/rfc6169.html
• https://www.kb.cert.org/vuls/id/199397

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