CVE-2015-6272: Cisco IOS XE

High severity, CVSS 7.8. EPSS: 1.9% chance of exploitation in the next 30 days.

Cisco IOS XE 2.1.0 through 2.2.3 and 2.3.0 on ASR 1000 devices, when NAT Application Layer Gateway is used, allows remote attackers to cause a denial of service (Embedded Services Processor crash) via a crafted H.323 packet, aka Bug ID CSCsx35393, CSCsx07094, and CSCsw93064.

Affected products

• Cisco IOS XE: version 2.1.0 only; version 2.1.1 only; version 2.1.2 only; version 2.1.3 only; version 2.2.1 only; version 2.2.2 only; …

Published 2015-08-31. Last modified 2026-06-17.