CVE-2015-6273

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-08-29 · updated 2026-06-17
Weakness: CWE-399

Description

Cisco IOS XE before 3.1.2S on ASR 1000 devices mishandles the automatic setup of Virtual Fragment Reassembly (VFR) by certain firewall and NAT components, which allows remote attackers to cause a denial of service (Embedded Services Processor crash) via crafted IP packets, aka Bug IDs CSCtf87624, CSCte93229, CSCtd19103, and CSCti63623.

Affected products

Cisco IOS XE: 2.2.1, 2.2.2, 2.2.3, 3.1.0s, 3.1.1s

References

http://tools.cisco.com/security/center/viewAlert.x?alertId=40690
http://www.securitytracker.com/id/1033408
http://tools.cisco.com/security/center/viewAlert.x?alertId=40690
http://www.securitytracker.com/id/1033408

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