VIR Vulnerability Intelligence Relay

CVE-2015-6271

high
Published 2015-08-31 · Modified 2026-05-06
CVSS v3
—
CVSS v2
7.8
VIR risk
7.8

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.

Predictions

Exploit likelihood
20%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: psirt@cisco.com — http://tools.cisco.com/security/center/viewAlert.x?alertId=40688

References

CWEs

CWE-399

Verify integrity in audit chain (admin only). AS-IS.