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6.8 Medium

CVE-2020-3220 A vulnerability in the hardware crypto driver of Cisco IOS XE Software for Cisco 4300 Series Integrated Services Routers…

Description

A vulnerability in the hardware crypto driver of Cisco IOS XE Software for Cisco 4300 Series Integrated Services Routers and Cisco Catalyst 9800-L Wireless Controllers could allow an unauthenticated, remote attacker to disconnect legitimate IPsec VPN sessions to an affected device. The vulnerability is due to insufficient verification of authenticity of received Encapsulating Security Payload (ESP) packets. An attacker could exploit this vulnerability by tampering with ESP cleartext values as a man-in-the-middle.

Affected products and versions

Product Affected versions Fixed in
Cisco IOS XE Software 16.4.1 Versions not published

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Cisco IOS XE Software 16.4.1

The 3 CVEs of Cisco IOS XE Software 16.4.1 →
CVE-2019-12666 A vulnerability in the Guest Shell of Cisco IOS XE Software could allow an authenticated, local attacker to perform… 6.7 Medium CVE-2019-12667 A vulnerability in the web framework code of Cisco IOS XE Software could allow an authenticated, remote attacker to… 5.5 Medium
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