TI-2018-00127 Aliases CVE-2018-0157 GHSA-62mx-f8g8-6q8g

A vulnerability in the Zone-Based Firewall code of Cisco IOS XE Software could allow an…

MEDIUM 48CWE-19Published 2018-03-28 · Updated 2024-12-02

Key facts

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

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

Summary

A vulnerability in the Zone-Based Firewall code of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a device to reload. The vulnerability is due to the way fragmented packets are handled in the firewall code. An attacker could exploit this vulnerability by sending fragmented IP Version 4 or IP Version 6 packets through an affected device. An exploit could allow the attacker to cause the device to crash, resulting in a denial of service (DoS) condition. The following releases of Cisco IOS XE Software are vulnerable: Everest-16.4.1, Everest-16.4.2, Everest-16.5.1, Everest-16.5.1b, Everest-16.6.1, Everest-16.6.1a. Cisco Bug IDs: CSCvf60296.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0267 85th 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: Yes
Technical impact: Partial

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 · 6

CPE	Versions	Role	Vendor
cpe:2.3:o:cisco:ios_xe:16.4.1:::::::*	16.4.1	Vulnerable	Cisco
cpe:2.3:o:cisco:ios_xe:16.4.2:::::::*	16.4.2	Vulnerable	Cisco
cpe:2.3:o:cisco:ios_xe:16.5.1:::::::*	16.5.1	Vulnerable	Cisco
cpe:2.3:o:cisco:ios_xe:16.5.1b:::::::*	16.5.1b	Vulnerable	Cisco
cpe:2.3:o:cisco:ios_xe:16.6.1:::::::*	16.6.1	Vulnerable	Cisco
cpe:2.3:o:cisco:ios_xe:16.6.1a:::::::*	16.6.1a	Vulnerable	Cisco

cpe:2.3:o:cisco:ios_xe:16.4.1:*:*:*:*:*:*:* Versions 16.4.1 Vulnerable ·Cisco
cpe:2.3:o:cisco:ios_xe:16.4.2:*:*:*:*:*:*:* Versions 16.4.2 Vulnerable ·Cisco
cpe:2.3:o:cisco:ios_xe:16.5.1:*:*:*:*:*:*:* Versions 16.5.1 Vulnerable ·Cisco
cpe:2.3:o:cisco:ios_xe:16.5.1b:*:*:*:*:*:*:* Versions 16.5.1b Vulnerable ·Cisco
cpe:2.3:o:cisco:ios_xe:16.6.1:*:*:*:*:*:*:* Versions 16.6.1 Vulnerable ·Cisco
cpe:2.3:o:cisco:ios_xe:16.6.1a:*:*:*:*:*:*:* Versions 16.6.1a Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-0157
2026-10-03 Alias added: GHSA-62mx-f8g8-6q8g

References

Advisory 1

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

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