CVE-2014-7997

Name: CVE-2014-7997
Creator: NVD / NIST
Published: 2014-11-15T02:59:01.517+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.69%

Last modified Jun 17, 2026

CVE-2014-7997 is a vulnerability of currently unknown severity. The DHCP implementation in Cisco IOS on Aironet access points does not properly handle error conditions with short leases and unsuccessful lease-renewal attempts, which allows remote attackers to cause a denial of service (device restart) by triggering a transition into a recovery state that was intended to involve a network-interface restart but actually involves a full device restart, aka Bug ID CSCtn16281.. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

Description

The DHCP implementation in Cisco IOS on Aironet access points does not properly handle error conditions with short leases and unsuccessful lease-renewal attempts, which allows remote attackers to cause a denial of service (device restart) by triggering a transition into a recovery state that was intended to involve a network-interface restart but actually involves a full device restart, aka Bug ID CSCtn16281.

Metrics

EPSS Probability

0.69%

47.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Cisco	Ios	All versions

References

Timeline

Published: Nov 15, 2014
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-7997?

How severe is CVE-2014-7997?

Severity scoring for CVE-2014-7997 is pending analysis. The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.

How do I fix CVE-2014-7997?

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-2014-7997?

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

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Source: NVD / NIST