Vulnerability in Cisco Ios Xr Software
CVE-2020-3118
A vulnerability in the Cisco Discovery Protocol implementation for Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to execute arbitrary code or cause a reload on an affected device. The vulnerability is due to impro…
EPSS: 0.002 (42.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Cisco Ios Xr Software — versions unspecified
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- 20200205 Cisco IOS XR Software Cisco Discovery Protocol Format String Vulnerability (vendor-advisory, x_refsource_CISCO)
- packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device… (x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-3118?
- CVE-2020-3118 is a high-severity vulnerability in Cisco Ios Xr Software, classified under Use of Externally-Controlled Format String. CVSS score: 8.8/10. Published 2020-02-05.
- How severe is CVE-2020-3118?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-3118 known to be exploited?
- Yes. CVE-2020-3118 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 6 public proof-of-concept repositories are indexed.