Security readout for executives and security teams
Plain-English summary
CVE-2021-1298 is a Cisco SD-WAN command injection issue. A logged-in attacker with low privileges could cause an affected device to run commands with root privileges. The sources describe high confidentiality and integrity impact, but not availability impact.
Executive priority
Treat this as a high-priority infrastructure risk where Cisco SD-WAN is deployed. Root-level command execution from a low-privileged authenticated account can materially affect network control and sensitive data integrity.
Technical view
The CVE describes multiple command injection vulnerabilities in Cisco SD-WAN products, classified under CWE-20. CVSS 3.0 is 8.1 with network access, low privileges required, no user interaction, unchanged scope, and high confidentiality and integrity impact.
Likely exposure
Organizations using Cisco SD-WAN Solution may be exposed if affected devices are reachable by authenticated users, especially where low-privileged SD-WAN accounts exist or management access is broadly available.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Exploitation requires authentication, but successful abuse could execute commands with root privileges on the affected device.
Researcher notes
Evidence in the bundle identifies the product family, impact, CWE, and CVSS vector, but does not include Cisco’s detailed affected-version matrix. Avoid assuming specific releases without checking the vendor advisory.
Mitigation direction
- Review Cisco’s advisory for affected releases and vendor guidance.
- Apply Cisco-provided fixed software or workarounds if listed for your release.
- Restrict SD-WAN management access to trusted administrators and networks.
- Remove unnecessary low-privileged SD-WAN accounts and stale access.
Validation and detection
- Inventory Cisco SD-WAN Solution devices and compare them with Cisco’s advisory.
- Confirm management interfaces are not broadly reachable from untrusted networks.
- Review SD-WAN account lists for unnecessary low-privileged users.
- Check logs for suspicious authenticated management activity.
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-20: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-1298 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
- High
- CVSS
- 8.1 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
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:L/UI:N/S:U/C:H/I:H/A:N2.85.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.1HighVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20210120 Cisco SD-WAN Command Injection 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.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.