TI-2016-01365 Aliases CVE-2016-1478 GHSA-3q3v-4552-vg2p

Cisco IOS 15.5(3)S3, 15.6(1)S2, 15.6(2)S1, and 15.6(2)T1 does not properly dequeue…

LOW 37CWE-20Published 2016-08-08 · Updated 2024-08-05

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 3.0 · NVD. Fix status from CNA.

Summary

Cisco IOS 15.5(3)S3, 15.6(1)S2, 15.6(2)S1, and 15.6(2)T1 does not properly dequeue invalid NTP packets, which allows remote attackers to cause a denial of service (interface wedge) by sending many crafted NTP packets, aka Bug ID CSCva35619.

Why it matters now

EPSS 0.01939 80th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:o:cisco:ios:15.5\(3\)s3:::::::*	15.5(3)s3	Vulnerable	Cisco
cpe:2.3:o:cisco:ios:15.6\(1\)s2:::::::*	15.6(1)s2	Vulnerable	Cisco
cpe:2.3:o:cisco:ios:15.6\(2\)s1:::::::*	15.6(2)s1	Vulnerable	Cisco
cpe:2.3:o:cisco:ios:15.6\(2\)t1:::::::*	15.6(2)t1	Vulnerable	Cisco

cpe:2.3:o:cisco:ios:15.5\(3\)s3:*:*:*:*:*:*:* Versions 15.5(3)s3 Vulnerable ·Cisco
cpe:2.3:o:cisco:ios:15.6\(1\)s2:*:*:*:*:*:*:* Versions 15.6(1)s2 Vulnerable ·Cisco
cpe:2.3:o:cisco:ios:15.6\(2\)s1:*:*:*:*:*:*:* Versions 15.6(2)s1 Vulnerable ·Cisco
cpe:2.3:o:cisco:ios:15.6\(2\)t1:*:*:*:*:*:*:* Versions 15.6(2)t1 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2016-1478
2026-10-03 Alias added: GHSA-3q3v-4552-vg2p

References

Advisory 1

20160804 Cisco IOS Software Crafted Network Time Protocol Packets Denial of Service Vulnerability

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