Security readout for executives and security teams
Plain-English summary
Cisco Prime License Manager had a critical web management flaw that could let a remote attacker gain administrator-level control of the system. The attacker needs a valid username, but no user interaction is required. Systems with reachable PLM management interfaces should be treated as high priority for review.
Executive priority
Prioritize this as critical if Cisco Prime License Manager is present, especially if management access is broadly reachable. The business concern is unauthorized administrative control of a licensing management system, with possible confidentiality, integrity, and availability impact.
Technical view
CVE-2020-3140 is an insufficient input validation issue in the Cisco Prime License Manager web management interface. A malicious request could allow unauthorized administrative-level privileges. The CVSS v3.0 score is 9.8, with network attack vector, low complexity, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to environments running Cisco Prime License Manager. Risk is highest where the web management interface is reachable from untrusted networks and an attacker has or can obtain a valid username. The source bundle does not identify specific affected versions.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation evidence. Exploitation is described as remote through the web management interface using a malicious request, requiring a valid username, and potentially resulting in administrative-level privileges.
Researcher notes
Key gaps in the provided bundle are exact affected versions, fixed releases, and detailed mitigations. Use the Cisco advisory as the authoritative source for version mapping and remediation. Do not assume exploitation in the wild from the provided evidence.
Mitigation direction
- Identify all Cisco Prime License Manager deployments and owners.
- Review Cisco advisory for affected releases and Cisco-supported fixes.
- Apply Cisco-recommended updates or mitigations where the product is present.
- Restrict PLM web management access to trusted administrative networks.
- Monitor administrative account activity on PLM systems.
Validation and detection
- Confirm whether Cisco Prime License Manager is deployed.
- Check PLM web interface reachability from untrusted networks.
- Verify installed version against Cisco advisory guidance.
- Review logs for unexpected administrative actions or unusual login attempts.
- Confirm only authorized users can reach the management interface.
Public sources used
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-255: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-3140 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
9.8CriticalVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20200715 Cisco Prime License Manager Privilege Escalation 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.
Credentials Management Errors
Credentials Management Errors represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.