CVE-2017-6613

What it is

A vulnerability in the DNS input packet processor for Cisco Prime Network Registrar could allow an unauthenticated, remote attacker to cause the DNS process to momentarily restart, which could lead to a partial denial of service (DoS) condition on the affected system. The vulnerability is due to incomplete DNS packet header validation when the packet is received by the application. An attacker could exploit this vulnerability by sending a malformed DNS packet to the application. An exploit could allow the attacker to cause the DNS process to restart, which could lead to a DoS condition. This vulnerability affects Cisco Prime Network Registrar on all software versions prior to 8.3.5. Cisco Bug IDs: CSCvb55412.

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

2.0% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2017-04-20 22:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 01:22 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 2.0% in the next 30 days (EPSS).
• Severity: 5.8 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2017-04-20 22:59 UTC

Last modified

2026-06-17 01:22 UTC

Exploit probability

2.0% · EPSS, next 30 days

Weakness

CWE-399

Record status

Modified

Affected

• Cisco Prime Network Registrar 8.3.0
• Cisco Prime Network Registrar 8.3.1
• Cisco Prime Network Registrar 8.3.2
• Cisco Prime Network Registrar 8.3.3
• Cisco Prime Network Registrar 8.3.4

Attack profile CVSS 3.0 · 5.8

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

Low

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2017-6613.md and follow it. Check whether this project is affected by CVE-2017-6613. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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