CVE-2020-3118 · netVigilance record NV21-0143
Cisco IOS XR Software Discovery Protocol Format String
past due
What to do
Apply updates per vendor instructions.
CISA deadline 2022-05-03 · passed 4 years 4 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
Cisco IOS XR improperly validates string input from certain fields in Cisco Discovery Protocol messages. Exploitation could allow an unauthenticated, adjacent attacker to execute code with administrative privileges or cause a reload on an affected device.
Who is affected
Cisco IOS XR. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-134.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 4 years 4 months ago
Sources
- NVD entry for CVE-2020-3118 nvd.nist.gov/vuln/detail/CVE-2020-3118
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2020-3118