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September 26, 2026

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CVE-2023-20273NVD

Vulnerability Summary

A vulnerability in the web UI feature of Cisco IOS XE Software could allow an authenticated, remote attacker to inject commands with the privileges of root. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted input to the web UI. A successful exploit could allow the attacker to inject commands to the underlying operating system with root privileges.
Severity Level
HIGH(7.2)
Published Date
Oct 24, 2023
Last Modified
Oct 21, 2025
Exploitation Status
ACTIVE
EPSS Score (30-Day)
Data Pending
Root Weakness (CWE)
CWE-78: OS Command Injection ↗
The software constructs all or part of an OS command using externally-influenced input, but does not properly neutralize special elements.
CVSS v3.1 Base Metrics — Score 7.2 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Cisco Cisco IOS XE Software >= 16.1.1
  • Cisco Cisco IOS XE Software >= 16.1.2
  • Cisco Cisco IOS XE Software >= 16.1.3
  • Cisco Cisco IOS XE Software >= 16.2.1
  • Cisco Cisco IOS XE Software >= 16.2.2
  • Cisco Cisco IOS XE Software >= 16.3.1
  • Cisco Cisco IOS XE Software >= 16.3.2
  • Cisco Cisco IOS XE Software >= 16.3.3
  • Cisco Cisco IOS XE Software >= 16.3.1a
  • Cisco Cisco IOS XE Software >= 16.3.4
  • Cisco Cisco IOS XE Software >= 16.3.5
  • Cisco Cisco IOS XE Software >= 16.3.5b
  • Cisco Cisco IOS XE Software >= 16.3.6
  • Cisco Cisco IOS XE Software >= 16.3.7
  • Cisco Cisco IOS XE Software >= 16.3.8
  • Cisco Cisco IOS XE Software >= 16.3.9
  • Cisco Cisco IOS XE Software >= 16.3.10
  • Cisco Cisco IOS XE Software >= 16.3.11
  • Cisco Cisco IOS XE Software >= 16.4.1
  • Cisco Cisco IOS XE Software >= 16.4.2
  • Cisco Cisco IOS XE Software >= 16.4.3
  • Cisco Cisco IOS XE Software >= 16.5.1
  • Cisco Cisco IOS XE Software >= 16.5.1a
  • Cisco Cisco IOS XE Software >= 16.5.1b
  • Cisco Cisco IOS XE Software >= 16.5.2
  • Cisco Cisco IOS XE Software >= 16.5.3
  • Cisco Cisco IOS XE Software >= 16.6.1
  • Cisco Cisco IOS XE Software >= 16.6.2
  • Cisco Cisco IOS XE Software >= 16.6.3
  • Cisco Cisco IOS XE Software >= 16.6.4
  • Cisco Cisco IOS XE Software >= 16.6.5
  • Cisco Cisco IOS XE Software >= 16.6.4a
  • Cisco Cisco IOS XE Software >= 16.6.5a
  • Cisco Cisco IOS XE Software >= 16.6.6
  • Cisco Cisco IOS XE Software >= 16.6.7
  • Cisco Cisco IOS XE Software >= 16.6.8
  • Cisco Cisco IOS XE Software >= 16.6.9
  • Cisco Cisco IOS XE Software >= 16.6.10
  • Cisco Cisco IOS XE Software >= 16.7.1
  • Cisco Cisco IOS XE Software >= 16.7.1a
  • Cisco Cisco IOS XE Software >= 16.7.1b
  • Cisco Cisco IOS XE Software >= 16.7.2
  • Cisco Cisco IOS XE Software >= 16.7.3
  • Cisco Cisco IOS XE Software >= 16.7.4
  • Cisco Cisco IOS XE Software >= 16.8.1
  • Cisco Cisco IOS XE Software >= 16.8.1a
  • Cisco Cisco IOS XE Software >= 16.8.1b
  • Cisco Cisco IOS XE Software >= 16.8.1s
  • Cisco Cisco IOS XE Software >= 16.8.1c
  • Cisco Cisco IOS XE Software >= 16.8.1d
  • Cisco Cisco IOS XE Software >= 16.8.2
  • Cisco Cisco IOS XE Software >= 16.8.1e
  • Cisco Cisco IOS XE Software >= 16.8.3
  • Cisco Cisco IOS XE Software >= 16.9.1
  • Cisco Cisco IOS XE Software >= 16.9.2
  • Cisco Cisco IOS XE Software >= 16.9.1a
  • Cisco Cisco IOS XE Software >= 16.9.1b
  • Cisco Cisco IOS XE Software >= 16.9.1s
  • Cisco Cisco IOS XE Software >= 16.9.3
  • Cisco Cisco IOS XE Software >= 16.9.4
  • Cisco Cisco IOS XE Software >= 16.9.3a
  • Cisco Cisco IOS XE Software >= 16.9.5
  • Cisco Cisco IOS XE Software >= 16.9.5f
  • Cisco Cisco IOS XE Software >= 16.9.6
  • Cisco Cisco IOS XE Software >= 16.9.7
  • Cisco Cisco IOS XE Software >= 16.9.8
  • Cisco Cisco IOS XE Software >= 16.10.1
  • Cisco Cisco IOS XE Software >= 16.10.1a
  • Cisco Cisco IOS XE Software >= 16.10.1b
  • Cisco Cisco IOS XE Software >= 16.10.1s
  • Cisco Cisco IOS XE Software >= 16.10.1c
  • Cisco Cisco IOS XE Software >= 16.10.1e
  • Cisco Cisco IOS XE Software >= 16.10.1d
  • Cisco Cisco IOS XE Software >= 16.10.2
  • Cisco Cisco IOS XE Software >= 16.10.1f
  • Cisco Cisco IOS XE Software >= 16.10.1g
  • Cisco Cisco IOS XE Software >= 16.10.3
  • Cisco Cisco IOS XE Software >= 16.11.1
  • Cisco Cisco IOS XE Software >= 16.11.1a
  • Cisco Cisco IOS XE Software >= 16.11.1b
  • Cisco Cisco IOS XE Software >= 16.11.2
  • Cisco Cisco IOS XE Software >= 16.11.1s
  • Cisco Cisco IOS XE Software >= 16.12.1
  • Cisco Cisco IOS XE Software >= 16.12.1s
  • Cisco Cisco IOS XE Software >= 16.12.1a
  • Cisco Cisco IOS XE Software >= 16.12.1c
  • Cisco Cisco IOS XE Software >= 16.12.1w
  • Cisco Cisco IOS XE Software >= 16.12.2
  • Cisco Cisco IOS XE Software >= 16.12.1y
  • Cisco Cisco IOS XE Software >= 16.12.2a
  • Cisco Cisco IOS XE Software >= 16.12.3
  • Cisco Cisco IOS XE Software >= 16.12.8
  • Cisco Cisco IOS XE Software >= 16.12.2s
  • Cisco Cisco IOS XE Software >= 16.12.1x
  • Cisco Cisco IOS XE Software >= 16.12.1t
  • Cisco Cisco IOS XE Software >= 16.12.4
  • Cisco Cisco IOS XE Software >= 16.12.3s
  • Cisco Cisco IOS XE Software >= 16.12.3a
  • Cisco Cisco IOS XE Software >= 16.12.4a
  • Cisco Cisco IOS XE Software >= 16.12.5
  • Cisco Cisco IOS XE Software >= 16.12.6
  • Cisco Cisco IOS XE Software >= 16.12.1z1
  • Cisco Cisco IOS XE Software >= 16.12.5a
  • Cisco Cisco IOS XE Software >= 16.12.5b
  • Cisco Cisco IOS XE Software >= 16.12.1z2
  • Cisco Cisco IOS XE Software >= 16.12.6a
  • Cisco Cisco IOS XE Software >= 16.12.7
  • Cisco Cisco IOS XE Software >= 16.12.9
  • Cisco Cisco IOS XE Software >= 16.12.10
  • Cisco Cisco IOS XE Software >= 17.1.1
  • Cisco Cisco IOS XE Software >= 17.1.1a
  • Cisco Cisco IOS XE Software >= 17.1.1s
  • Cisco Cisco IOS XE Software >= 17.1.1t
  • Cisco Cisco IOS XE Software >= 17.1.3
  • Cisco Cisco IOS XE Software >= 17.2.1
  • Cisco Cisco IOS XE Software >= 17.2.1r
  • Cisco Cisco IOS XE Software >= 17.2.1a
  • Cisco Cisco IOS XE Software >= 17.2.1v
  • Cisco Cisco IOS XE Software >= 17.2.2
  • Cisco Cisco IOS XE Software >= 17.2.3
  • Cisco Cisco IOS XE Software >= 17.3.1
  • Cisco Cisco IOS XE Software >= 17.3.2
  • Cisco Cisco IOS XE Software >= 17.3.3
  • Cisco Cisco IOS XE Software >= 17.3.1a
  • Cisco Cisco IOS XE Software >= 17.3.1w
  • Cisco Cisco IOS XE Software >= 17.3.2a
  • Cisco Cisco IOS XE Software >= 17.3.1x
  • Cisco Cisco IOS XE Software >= 17.3.1z
  • Cisco Cisco IOS XE Software >= 17.3.4
  • Cisco Cisco IOS XE Software >= 17.3.5
  • Cisco Cisco IOS XE Software >= 17.3.4a
  • Cisco Cisco IOS XE Software >= 17.3.6
  • Cisco Cisco IOS XE Software >= 17.3.4b
  • Cisco Cisco IOS XE Software >= 17.3.4c
  • Cisco Cisco IOS XE Software >= 17.3.5a
  • Cisco Cisco IOS XE Software >= 17.3.5b
  • Cisco Cisco IOS XE Software >= 17.3.7
  • Cisco Cisco IOS XE Software >= 17.3.8
  • Cisco Cisco IOS XE Software >= 17.4.1
  • Cisco Cisco IOS XE Software >= 17.4.2
  • Cisco Cisco IOS XE Software >= 17.4.1a
  • Cisco Cisco IOS XE Software >= 17.4.1b
  • Cisco Cisco IOS XE Software >= 17.4.2a
  • Cisco Cisco IOS XE Software >= 17.5.1
  • Cisco Cisco IOS XE Software >= 17.5.1a
  • Cisco Cisco IOS XE Software >= 17.5.1b
  • Cisco Cisco IOS XE Software >= 17.5.1c
  • Cisco Cisco IOS XE Software >= 17.6.1
  • Cisco Cisco IOS XE Software >= 17.6.2
  • Cisco Cisco IOS XE Software >= 17.6.1w
  • Cisco Cisco IOS XE Software >= 17.6.1a
  • Cisco Cisco IOS XE Software >= 17.6.1x
  • Cisco Cisco IOS XE Software >= 17.6.3
  • Cisco Cisco IOS XE Software >= 17.6.1y
  • Cisco Cisco IOS XE Software >= 17.6.1z
  • Cisco Cisco IOS XE Software >= 17.6.3a
  • Cisco Cisco IOS XE Software >= 17.6.4
  • Cisco Cisco IOS XE Software >= 17.6.1z1
  • Cisco Cisco IOS XE Software >= 17.6.5
  • Cisco Cisco IOS XE Software >= 17.6.6
  • Cisco Cisco IOS XE Software >= 17.7.1
  • Cisco Cisco IOS XE Software >= 17.7.1a
  • Cisco Cisco IOS XE Software >= 17.7.1b
  • Cisco Cisco IOS XE Software >= 17.7.2
  • Cisco Cisco IOS XE Software >= 17.10.1
  • Cisco Cisco IOS XE Software >= 17.10.1a
  • Cisco Cisco IOS XE Software >= 17.10.1b
  • Cisco Cisco IOS XE Software >= 17.8.1
  • Cisco Cisco IOS XE Software >= 17.8.1a
  • Cisco Cisco IOS XE Software >= 17.9.1
  • Cisco Cisco IOS XE Software >= 17.9.1w
  • Cisco Cisco IOS XE Software >= 17.9.2
  • Cisco Cisco IOS XE Software >= 17.9.1a
  • Cisco Cisco IOS XE Software >= 17.9.1x
  • Cisco Cisco IOS XE Software >= 17.9.1y
  • Cisco Cisco IOS XE Software >= 17.9.3
  • Cisco Cisco IOS XE Software >= 17.9.2a
  • Cisco Cisco IOS XE Software >= 17.9.1x1
  • Cisco Cisco IOS XE Software >= 17.9.3a
  • Cisco Cisco IOS XE Software >= 17.9.4
  • Cisco Cisco IOS XE Software >= 17.9.1y1
  • Cisco Cisco IOS XE Software >= 17.11.1
  • Cisco Cisco IOS XE Software >= 17.11.1a
  • Cisco Cisco IOS XE Software >= 17.12.1
  • Cisco Cisco IOS XE Software >= 17.12.1a
  • Cisco Cisco IOS XE Software >= 17.11.99SW
Patched Versions
Not provided by cveorg for this CVE.
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🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References