Security readout for executives and security teams
This flaw could let someone already on the same local network segment as vulnerable Cisco IP phones take control of a phone as root or crash it. The business risk is disruption to voice service and potential foothold inside trusted network zones, especially where voice networks are reachable from untrusted ports. Organizations using Cisco IP phones with Cisco Discovery Protocol enabled may be exposed if attackers can reach the same broadcast domain. The source bundle lists affected versions as unspecified, so exposure depends on Cisco advisory model and software matching. Treat as high priority where voice networks are reachable from untrusted devices. It is not described as internet-exploitable, but root-level phone compromise and service disruption justify prompt inventory and vendor-guided remediation. Mitigation focus: Check Cisco advisory for affected models and fixed software guidance.; Prioritize remediation for phones on shared or weakly controlled network segments.; Restrict untrusted access to voice VLANs and phone broadcast domains..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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Open ATT&CK lookupExecution behavior lookup
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Open ATT&CK lookupCVE-2020-3111 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
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CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.8HighVector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20200205 Cisco IP Phone Remote Code Execution and Denial of Service VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.