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CVE Record

CVE-2020-3212: Cisco IOS XE Software Web UI Command Injection Vulnerability

A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to execute arbitrary commands with root privileges on the underlying operating system of an affected device. The vulnerability is due to improper input sanitization. An attacker could exploit this vulnerability by uploading a crafted file to the web UI of an affected device. A successful exploit could allow the attacker to inject and execute arbitrary commands with root privileges on the device.

HighCVSS 7.2Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2020-3212 lets a highly privileged authenticated user abuse the Cisco IOS XE web interface to run operating-system commands as root. For executives, the business issue is potential full control of affected network devices if admin credentials or access are misused or compromised.

Executive priority

Prioritize remediation for internet-reachable or broadly reachable management interfaces first. This is not confirmed as actively exploited in the supplied sources, but root-level impact on network infrastructure makes delayed remediation risky.

Technical view

The bundled sources describe improper input sanitization in the Cisco IOS XE Software Web UI. An authenticated remote attacker with high privileges can upload a crafted file that causes command injection, resulting in arbitrary command execution as root. CVSS 3.0 score is 7.2, with high confidentiality, integrity, and availability impact.

Likely exposure

Exposure is most likely on Cisco IOS XE Software 16.11.1 devices where the web UI is enabled and reachable by administrators or management networks. The source bundle does not prove broader affected versions beyond the listed product entry.

Exploitation context

The CVE requires network access to the web UI and high-privilege authentication. The bundle marks CISA KEV status as false and provides no cited evidence of active exploitation. Treat risk as serious because successful exploitation reaches root privileges on infrastructure devices.

Researcher notes

Evidence is limited to the CVE data and Cisco advisory reference in the bundle. The key constraints are PR:H, AV:N, UI:N, command injection via uploaded file, and root impact. Do not assume public exploit availability or additional affected releases from this bundle alone.

Mitigation direction

  • Check Cisco’s advisory for fixed software or official remediation guidance.
  • Prioritize affected IOS XE 16.11.1 devices with reachable web UI.
  • Limit web UI access to trusted management networks where operationally possible.
  • Review and reduce high-privilege web UI accounts.
  • Monitor vendor advisories for any updated affected-version or fix information.

Validation and detection

  • Inventory Cisco IOS XE devices and confirm exact software versions.
  • Determine whether the web UI is enabled and remotely reachable.
  • Validate which accounts have high privileges on the web UI.
  • Review administrative web UI activity for unexpected file uploads or command anomalies.
  • Document remediation status against Cisco’s advisory.
Prepared
Confidence
high
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · medium confidence lookup

CWE-77: Command execution behavior lookup

Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. 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 lookup
description · low confidence lookup

Execution 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 lookup
cve · low confidence lookup

CVE-2020-3212 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.2 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
7.2CVSS 3.0HighCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

7.2High
CVSS 3.0 vector shape for CVE-2020-3212Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
CiscoCisco IOS XE Software 16.11.1n/aListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-77 · source CWE mapping

Improper Neutralization of Special Elements used in a Command ('Command Injection')

Improper Neutralization of Special Elements used in a Command ('Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.