What is CVE-2017-6627?

CVE-2017-6627 is a high-severity vulnerability in Cisco Ios, classified under CWE-399. CVSS score: 7.5/10. Published 2017-09-07.

How severe is CVE-2017-6627?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2017-6627 known to be exploited?

Yes. CVE-2017-6627 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.

Vulnerability in Cisco Ios

CVE-2017-6627

A vulnerability in the UDP processing code of Cisco IOS 15.1, 15.2, and 15.4 and IOS XE 3.14 through 3.18 could allow an unauthenticated, remote attacker to cause the input queue of an affected system to hold UDP packets, causing an interf…

EPSS: 0.060 (92.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Cisco Ios — versions 15.1\(2\)gc, 15.1\(2\)gc1, 15.1\(2\)gc2
Cisco Ios_xe — versions 3.14.0s, 3.14.1s, 3.14.2s
N/a Cisco Ios And Xe — versions Cisco IOS and Cisco IOS XE

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-03-03. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-03-24.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)
psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK, Broken Link)
psirt@cisco.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2017-6627?: CVE-2017-6627 is a high-severity vulnerability in Cisco Ios, classified under CWE-399. CVSS score: 7.5/10. Published 2017-09-07.
How severe is CVE-2017-6627?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2017-6627 known to be exploited?: Yes. CVE-2017-6627 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.