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TI-2020-02782 Aliases CVE-2020-3222GHSA-gh79-qhp7-4p5x

Cisco IOS XE Software Web UI Unauthenticated Proxy Service Vulnerability

Priority LOW 20CWE-17Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

A vulnerability in the web-based user interface (web UI) of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to bypass access control restrictions on an affected device. The vulnerability is due to the presence of a proxy service at a specific endpoint of the web UI. An attacker could exploit this vulnerability by connecting to the proxy service. An exploit could allow the attacker to bypass access restrictions on the network by proxying their access request through the management network of the affected device. As the proxy is reached over the management virtual routing and forwarding (VRF), this could reduce the effectiveness of the bypass.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00442 38th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco IOS XE Software 16.10.1all versions—No fix listedCNA
  • Cisco IOS XE Software 16.10.1 VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 22

CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios_xe:16.10.1:*:*:*:*:*:*:*16.10.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.10.1a:*:*:*:*:*:*:*16.10.1aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.10.1b:*:*:*:*:*:*:*16.10.1bVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.10.1c:*:*:*:*:*:*:*16.10.1cVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.10.1d:*:*:*:*:*:*:*16.10.1dVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.10.1e:*:*:*:*:*:*:*16.10.1eVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.10.1f:*:*:*:*:*:*:*16.10.1fVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.10.1g:*:*:*:*:*:*:*16.10.1gVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.10.1s:*:*:*:*:*:*:*16.10.1sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.10.2:*:*:*:*:*:*:*16.10.2VulnerableCisco
  • cpe:2.3:o:cisco:ios_xe:16.10.1:*:*:*:*:*:*:* Versions 16.10.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.10.1a:*:*:*:*:*:*:* Versions 16.10.1a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.10.1b:*:*:*:*:*:*:* Versions 16.10.1b Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.10.1c:*:*:*:*:*:*:* Versions 16.10.1c Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.10.1d:*:*:*:*:*:*:* Versions 16.10.1d Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.10.1e:*:*:*:*:*:*:* Versions 16.10.1e Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.10.1f:*:*:*:*:*:*:* Versions 16.10.1f Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.10.1g:*:*:*:*:*:*:* Versions 16.10.1g Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.10.1s:*:*:*:*:*:*:* Versions 16.10.1s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.10.2:*:*:*:*:*:*:* Versions 16.10.2 Vulnerable ·Cisco
Show 12 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:*16.11.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.11.1a:*:*:*:*:*:*:*16.11.1aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.11.1b:*:*:*:*:*:*:*16.11.1bVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.11.1c:*:*:*:*:*:*:*16.11.1cVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.11.1s:*:*:*:*:*:*:*16.11.1sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:*16.12.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1a:*:*:*:*:*:*:*16.12.1aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1c:*:*:*:*:*:*:*16.12.1cVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:*16.12.1sVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1t:*:*:*:*:*:*:*16.12.1tVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1w:*:*:*:*:*:*:*16.12.1wVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.12.1y:*:*:*:*:*:*:*16.12.1yVulnerableCisco
  • cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:* Versions 16.11.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.11.1a:*:*:*:*:*:*:* Versions 16.11.1a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.11.1b:*:*:*:*:*:*:* Versions 16.11.1b Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.11.1c:*:*:*:*:*:*:* Versions 16.11.1c Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.11.1s:*:*:*:*:*:*:* Versions 16.11.1s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:* Versions 16.12.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1a:*:*:*:*:*:*:* Versions 16.12.1a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1c:*:*:*:*:*:*:* Versions 16.12.1c Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:* Versions 16.12.1s Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1t:*:*:*:*:*:*:* Versions 16.12.1t Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1w:*:*:*:*:*:*:* Versions 16.12.1w Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1y:*:*:*:*:*:*:* Versions 16.12.1y Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-3222
  2. 2026-10-03 Alias added: GHSA-gh79-qhp7-4p5x

References

Patch 1

  • TI-2023-06904 Cisco is providing an update for the ongoing investigation into observed exploitation of… KEVCVSS 3.1CRITICAL 10.0
  • TI-2018-00122 Memory corruption in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-02977 Improper input validation in Cisco IOS and IOS XE Software KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-00135 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.8
  • TI-2017-04498 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
  • TI-2017-04497 Memory corruption in Cisco IOS XE Software KEVCVSS 3.1HIGH 8.8
See all 561 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences