GRE and GRE6 Protocols (RFC2784) do not validate or verify the source of a network packet
Priority LOW 38Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0161 76th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IETF | RFC2784 - Generic Routing Encapsulation (GRE) | STD 1 | — | No fix listed | CNA |
- RFC2784 - Generic Routing Encapsulation (GRE) VendorIETF Affected STD 1 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2024-7595
- 2026-10-03 Alias added: GHSA-52hm-37gj-qx5h
References
Sources
- CVE-2024-7595 · CVE Program
- CVE-2024-7595 · NVD
- FIRST EPSS
- GHSA-52hm-37gj-qx5h · GitHub Advisory Database · CC BY 4.0
- CVE-2024-7595 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences