CVE-2015-6273

Name: CVE-2015-6273
Creator: NVD / NIST
Published: 2015-08-29T01:59:02.69+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.91%

Last modified Jun 17, 2026

CVE-2015-6273 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.91% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

1.91%

77.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Cisco	Ios Xe	2.2.1
Cisco	Ios Xe	2.2.2
Cisco	Ios Xe	2.2.3
Cisco	Ios Xe	3.1.0s
Cisco	Ios Xe	3.1.1s

References

Timeline

Published: Aug 29, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-6273?

How severe is CVE-2015-6273?

Severity scoring for CVE-2015-6273 is pending analysis. The EPSS model estimates a 1.91% probability of exploitation in the next 30 days.

How do I fix CVE-2015-6273?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-6273?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST