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Cisco’s “Patch Party”: Fixes Galore for IOS XR Vulnerabilities!
Cisco has patched 10 IOS XR vulnerabilities, including five that could cause denial-of-service conditions. The most severe, impacting IPv4 ACL and QoS features, could allow attackers to crash routers. A CLI bug could let attackers execute commands as root. Thankfully, Cisco hasn’t seen these bugs exploited in the wild yet.
Hot Take:
Looks like Cisco’s IOS XR is dancing the “Denial-of-Service” tango, and it’s stepping on some serious toes. Time to patch up those dance moves before hackers crash the party!
Key Points:
- Cisco released patches for 10 vulnerabilities in IOS XR, notably five that could lead to denial-of-service (DoS) conditions.
- The most severe flaws, CVE-2025-20142 and CVE-2025-20146, affect ASR 9000 series routers and involve IPv4 ACL and QoS policies.
- High-severity bugs in IKEv2 and packet handling could also result in DoS.
- Other vulnerabilities include a high-severity CLI issue allowing arbitrary command execution and Secure Boot bypass.
- No known exploits in the wild as of yet, but Cisco isn’t taking any chances.
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