Security readout for executives and security teams
Plain-English summary
Cisco DCNM had authorization bypass flaws in its web management interface. A logged-in remote attacker could access, change, or delete data beyond their intended permissions. The issue is medium severity, but it matters because DCNM manages data center network infrastructure.
Executive priority
Prioritize remediation for environments where Cisco DCNM administers critical data center networks or where many authenticated users can access the web interface. This is not presented as actively exploited in the supplied sources, but unauthorized changes in a network management platform can create operational risk.
Technical view
CVE-2021-1269 covers multiple authorization bypass vulnerabilities in Cisco Data Center Network Manager's web-based management interface. The CVSS 3.1 score is 6.3, with network access, low attack complexity, low privileges, and no user interaction required. Impact is limited confidentiality, integrity, and availability.
Likely exposure
Exposure is likely limited to organizations running Cisco Data Center Network Manager where the web management interface is reachable by authenticated users. Risk increases if DCNM access is broadly granted or reachable from less trusted networks.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. Treat this as an authenticated authorization-control weakness rather than an unauthenticated takeover based on the provided sources.
Researcher notes
The provided bundle does not include detailed affected version ranges, fixed versions, CWE mapping, or exploit indicators. Analysis should stay anchored to Cisco's advisory and CVSS vector. Validation should focus on authorization boundaries, exposed management access, and evidence of unauthorized view, modify, or delete actions.
Mitigation direction
- Check Cisco's advisory for affected releases and vendor remediation guidance.
- Apply Cisco-recommended updates or workarounds where applicable.
- Restrict DCNM web management access to trusted administrative networks.
- Review DCNM accounts and remove unnecessary user access.
- Monitor for unexpected data changes or privilege misuse.
Validation and detection
- Inventory Cisco DCNM deployments and exposed management interfaces.
- Compare installed DCNM versions against Cisco's advisory details.
- Confirm only authorized administrators can reach the web interface.
- Review recent DCNM audit logs for unauthorized data access or modification.
- Verify remediation status after applying Cisco guidance.
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.
Privilege 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-2021-1269 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
- Medium
- CVSS
- 6.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L2.83.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- 20210120 Cisco Data Center Network Manager Authorization Bypass VulnerabilitiesCVE 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.