What is CVE-2016-6421?

CVE-2016-6421 is a medium-severity vulnerability in Cisco iOS Xr, classified under CWE-399. CVSS score: 5.3/10. Published 2016-10-05.

How severe is CVE-2016-6421?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Cisco iOS Xr

CVE-2016-6421

Cisco IOS XR 5.2.2 allows remote attackers to cause a denial of service (process restart) via a crafted OSPF Link State Advertisement (LSA) update, aka Bug ID CSCvb05643.

EPSS: 0.016 (73.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Cisco Ios_xr — versions 5.2.2
N/a — versions n/a

Weakness classification (CWE)

CWE-399

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
psirt@cisco.com (vdb-entry, x_refsource_BID)
psirt@cisco.com (vdb-entry, x_refsource_SECTRACK)

Frequently asked questions

What is CVE-2016-6421?: CVE-2016-6421 is a medium-severity vulnerability in Cisco iOS Xr, classified under CWE-399. CVSS score: 5.3/10. Published 2016-10-05.
How severe is CVE-2016-6421?: Medium severity. CVSS v3 base score is 5.3 out of 10.