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7.6 High

CVE-2024-3661 DHCP can add routes to a client’s routing table via the classless static route option (121)

Description

DHCP can add routes to a client’s routing table via the classless static route option (121). VPN-based security solutions that rely on routes to redirect traffic can be forced to leak traffic over the physical interface. An attacker on the same local network can read, disrupt, or possibly modify network traffic that was expected to be protected by the VPN.

Affected products and versions

Product Affected versions Fixed in
DHCP 0 No fix stated

References

Timeline

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