Security readout for executives and security teams
Plain-English summary
This is a critical Cisco Smart Software Manager Satellite/On-Prem web UI flaw. A remote attacker without login could run commands on the underlying system, creating potential full compromise of licensing infrastructure and any connected operational processes.
Executive priority
Treat this as urgent for any deployed or exposed instance. Prioritize inventory, vendor-guided remediation, and network restriction because successful exploitation could give an unauthenticated remote attacker operating-system control.
Technical view
CVE-2021-1140 covers multiple web UI command injection vulnerabilities in Cisco Smart Software Manager Satellite. The CVSS 3.1 score is 9.8 with network attack, low complexity, no privileges, no user interaction, and high confidentiality, integrity, and availability impact. The mapped weakness is CWE-20.
Likely exposure
Organizations running Cisco Smart Software Manager Satellite or Cisco Smart Software Manager On-Prem are potentially exposed, especially if the web UI is reachable from untrusted networks. The provided bundle does not list exact affected or fixed versions.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. However, the vulnerability is remotely reachable, unauthenticated, low complexity, and can lead to operating-system command execution, making exposed systems high priority.
Researcher notes
Evidence is strong for vulnerability severity and impact, but incomplete for exact affected versions and fixed releases in the supplied bundle. Note the naming difference: the title references Satellite, while the affected product entry lists Cisco Smart Software Manager On-Prem.
Mitigation direction
- Review Cisco advisory for affected and fixed release guidance.
- Apply the vendor-recommended update or remediation for the installed deployment.
- Restrict web UI access to trusted administrative networks only.
- Remove any direct internet exposure for the management interface.
- Monitor for unusual processes or command execution from the appliance.
Validation and detection
- Inventory Cisco Smart Software Manager Satellite or On-Prem deployments.
- Confirm current version status against the Cisco advisory.
- Check whether the web UI is reachable from untrusted networks.
- Review appliance and network logs for suspicious administrative activity.
- Verify compensating access controls around 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-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-2021-1140 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 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20210120 Cisco Smart Software Manager Satellite Web UI 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.