Medium severity · published Jan 10, 2025
CVE-2024-6437
On affected platforms running Arista EOS with one of the following features configured to redirect IP traffic to a next hop: policy-based routing (PBR), BGP Flowspec, or interface traffic policy -- certain IP traffic such as IPv4 packets with IP options ma
5.8
CVSS
0.5%
EPSS
No
On KEV
Description
On affected platforms running Arista EOS with one of the following features configured to redirect IP traffic to a next hop: policy-based routing (PBR), BGP Flowspec, or interface traffic policy -- certain IP traffic such as IPv4 packets with IP options may bypass the feature's set nexthop action and be slow-path forwarded (FIB routed) by the kernel as the packets are trapped to the CPU instead of following the redirect action's destination.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EB
EOS - BGP Flowspec · Arista Networks
4.32.0F through 4.32.1F; 4.31.0M through 4.31.4M; 4.30.0M through 4.30.7M; 4.29.0M through 4.29.9M; 4.28.0M through 4.28.11M; 4.27.0M through 4.27.12M; +6 more · source: vendor
EI
EOS - Interface Traffic Policy · Arista Networks
4.32.0F through 4.32.1F; 4.31.0M through 4.31.4M; 4.30.0M through 4.30.7M; 4.29.0M through 4.29.9M; 4.28.0M through 4.28.11M; 4.27.2F through 4.27.12F · source: vendor
EB
EOS-Policy Based Routing (PBR) · Arista Networks
4.32.0F through 4.32.1F; 4.31.0M through 4.31.4M; 4.30.0M through 4.30.7M; 4.29.0M through 4.29.9M; 4.28.0M through 4.28.11M; 4.27.0M through 4.27.12M; +6 more · source: vendor