CVE-2024-7595
mediumpriority · track · 37EPSS 0.016 · 76 %ileexploit · PoCDEEURUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.3–8.1
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
affected products (9)
Products and version ranges known to be affected.
- Specification Tunneling Protocol 4in6all versionscert_bundDEcpe:/a:specification:tunneling_protocol:4in6
- Specification Tunneling Protocol 6in4all versionscert_bundDEcpe:/a:specification:tunneling_protocol:6in4
- Specification Tunneling Protocol GREall versionscert_bundDEcpe:/a:specification:tunneling_protocol:gre
- Specification Tunneling Protocol IPIPall versionscert_bundDEcpe:/a:specification:tunneling_protocol:ipip
- ietf generic routing encapsulationall versionsnvdUScpe:2.3:a:ietf:generic_routing_encapsulation:*:*:*:*:*:*:*:*
- ietf generic routing encapsulation6all versionsnvdUScpe:2.3:a:ietf:generic_routing_encapsulation6:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-0126Verschiedene Tunneling Protokolle: Mehrere SchwachstellenDeutsch2025-01-19csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in verschiedenen Tunneling Protokollen (GRE/IPIP/4in6/6in4) ausnutzen, um einen Spoofing-Angriff durchzuführen, Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand zu erzeugen und andere nicht spezifizierte Angriffe durchzuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://datatracker.ietf.org/doc/html/rfc2784cnnvd
- https://vigilance.fr/vulnerability/Junos-OS-multiple-vulnerabilities-dated-09-07-2025-47677cnnvd
- https://www.rfc-editor.org/rfc/rfc6169.htmlcnnvd
- https://datatracker.ietf.org/doc/html/rfc2784enisa_euvd
- https://www.rfc-editor.org/rfc/rfc6169.htmlenisa_euvd
- https://datatracker.ietf.org/doc/html/rfc2784Technical DescriptionRelatednvd
- https://www.kb.cert.org/vuls/id/199397nvd
- https://www.rfc-editor.org/rfc/rfc6169.htmlTechnical DescriptionRelatednvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan