CVE-2015-6271

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-08-31 · updated 2026-06-17
Weakness: CWE-399

Description

Cisco IOS XE 2.1.0 through 2.4.3 and 2.5.0 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 SIP packet, aka Bug IDs CSCta74749 and CSCta77008.

Affected products

Cisco IOS XE: 2.1.0, 2.1.1, 2.1.2, 2.1.3, 2.2.1, 2.2.2 (+10)

References

http://tools.cisco.com/security/center/viewAlert.x?alertId=40688
http://www.securitytracker.com/id/1033410
http://tools.cisco.com/security/center/viewAlert.x?alertId=40688
http://www.securitytracker.com/id/1033410

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