CVE-2013-6683 Denial of service in n/a

What is CVE-2013-6683?

CVE-2013-6683 is a medium-severity denial of service vulnerability in Cisco Nx-Os, published on 13 Nov 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The IPv6 implementation in Cisco NX-OS does not properly handle neighbor-table adjacencies, which allows remote attackers to cause a denial of service (NS processing outage) via a series of malformed packets, aka Bug ID CSCtd15904.

Weakness: CWE-20

Which versions are affected by CVE-2013-6683?

It affects 1 product.

Products include Cisco Nx-Os.

How do I fix CVE-2013-6683?

No fix has been published for CVE-2013-6683 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2013-6683 being exploited?

There is no known exploitation of CVE-2013-6683 in the wild and no public exploit code.

Other vulnerabilities in Cisco Nx-Os

• CVE-2024-20399 Cisco NX-OS Command Injection Exploited Medium 6.0
• CVE-2021-1361 Cisco NX-OS Software Unauthenticated Arbitrary File Actions Vulnerability Critical 9.8
• CVE-2018-0301 Memory corruption in Cisco NX-OS unknown Critical 9.8
• CVE-2016-1453 Memory corruption in n/a Critical 9.8
• CVE-2016-1341 Hardcoded credentials in n/a Critical 9.8

All Cisco Nx-Os vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-634r-jwf8-2jv7.