Cisco warned over the weekend that threat actors are trying to exploit a high severity memory exhaustion denial-of-service (DoS) vulnerability in the company's Cisco IOS XR software that runs on carrier-grade routers.
Cisco's
IOS XR Network OS is deployed on multiple router platforms including NCS 540 & 560, NCS 5500, 8000, and ASR 9000 series routers.
Cisco hasn't yet released software updates to address this actively exploited security flaw but the company provides mitigation in a security advisory published over the weekend.
"On August 28, 2020, the Cisco Product Security Incident Response Team (PSIRT) became aware of attempted exploitation of this vulnerability in the wild,"
Cisco explains. "For affected products, Cisco recommends implementing a mitigation that is appropriate for the customer’s environment."
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