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TI-2019-09466 Aliases CVE-2019-12670GHSA-g944-pxwm-3499

Cisco IOS XE Software IOx Guest Shell Namespace Protection Vulnerability

Priority LOW 31CWE-284Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-284.

Summary

A vulnerability in the filesystem of Cisco IOS XE Software could allow an authenticated, local attacker within the IOx Guest Shell to modify the namespace container protections on an affected device. The vulnerability is due to insufficient file permissions. An attacker could exploit this vulnerability by modifying files that they should not have access to. A successful exploit could allow the attacker to remove container protections and perform file actions outside the namespace of the container.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00314 24th 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
Total

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 3.2.11aSGall versions—No fix listedCNA
  • Cisco IOS XE Software 3.2.11aSG VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios:16.10.1:*:*:*:*:*:*:*16.10.1VulnerableCisco
  • cpe:2.3:o:cisco:ios:16.10.1:*:*:*:*:*:*:* Versions 16.10.1 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Cisco IOS XE Software 3.2.11aSG n/a

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2019-09445 Cisco IOS XE Software Digital Signature Verification Bypass VulnerabilityPriority LOW 31
    • TI-2019-09456 Cisco IOS XE Software ASIC Register Write VulnerabilityPriority LOW 25
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-12670
  2. 2026-10-03 Alias added: GHSA-g944-pxwm-3499

References

Advisory 1

  • TI-2018-00138 Improper input validation in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-09019 Improper input validation 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-2017-04499 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
  • TI-2017-04498 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
See all 617 →

Sources

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