What is CVE-2019-1901?

CVE-2019-1901 is a high-severity vulnerability in Cisco Nx-os System Software, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2019-07-31.

How severe is CVE-2019-1901?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Cisco Nx-os System Software

CVE-2019-1901

A vulnerability in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an adjacent, unauthenticated attacker to cause a denial of service (…

Vulnerability class: Buffer Overflow

EPSS: 0.011 (60.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2019-1901?: CVE-2019-1901 is a high-severity vulnerability in Cisco Nx-os System Software, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2019-07-31.
How severe is CVE-2019-1901?: High severity. CVSS v3 base score is 8.8 out of 10.