TI-2018-00149 Aliases CVE-2018-0183 GHSA-63wv-6q3h-cwmr

Access control flaw in Cisco IOS XE

LOW 32CWE-264Published 2018-03-28 · Updated 2024-12-02

Key facts

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

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-264 and CWE-78.

Summary

A vulnerability in the CLI parser of Cisco IOS XE Software could allow an authenticated, local attacker to gain access to the underlying Linux shell of an affected device and execute arbitrary commands with root privileges on the device. The vulnerability is due to the affected software improperly sanitizing command arguments to prevent access to internal data structures on a device. An attacker who has privileged EXEC mode (privilege level 15) access to an affected device could exploit this vulnerability on the device by executing CLI commands that contain crafted arguments. A successful exploit could allow the attacker to gain access to the underlying Linux shell of the affected device and execute arbitrary commands with root privileges on the device. Cisco Bug IDs: CSCuv91356.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00401 34th 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

Vendor	Product	Affected versions	Fixed in	Status	Source
—	Cisco IOS XE	Cisco IOS XE	—	No fix listed	CNA

Cisco IOS XE Vendor— Affected Cisco IOS XE Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:cisco:ios_xe::::::::	before 3.13.2as; before 3.13.5as; before 3.13.7as; before 3.13.9s; before 3.16.2as; before 3.16.2bs; before 3.16.3s; before 16.3.5b; before 16.3.6; before 3.13.0as; before 16.6.3	Vulnerable	Cisco

cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* Versions before 3.13.2as; before 3.13.5as; before 3.13.7as; before 3.13.9s; before 3.16.2as; before 3.16.2bs; before 3.16.3s; before 16.3.5b; before 16.3.6; before 3.13.0as; before 16.6.3 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-0183
2026-10-03 Alias added: GHSA-63wv-6q3h-cwmr

References

Advisory 1

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-privesc3

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