CVE-2020-3118
Cisco IOS XR Software Discovery Protocol Format String Vulnerability
IN CISA KEV
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.
- Vendor
- Cisco
- Product
- IOS XR
- CVSS
- No score recorded (no NVD record loaded for this entry)
- CWE
- CWE-134
- Published
- Not recorded
- NVD modified
- Not recorded
CISA KEV
- Date added
- 2021-11-03
- Due date
- 2022-05-03
- Ransomware use
- Unknown
- Required action
- Apply updates per vendor instructions.
EPSS
11.7% chance of exploitation in the next 30 days (percentile 96th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.