8.6

CVE-2024-20321: cisco cisco nx-os software Uncontrolled Resource Consumption

CVSS: 8.6v3.1HighModified
Published 28-02-2024Last modified 16-08-2024
Open JSON

Vulnerability summary

CVE-2024-20321 is a high (CVSS 8.6) Uncontrolled Resource Consumption vulnerability in cisco cisco nx-os software. EPSS estimates a 0.71% chance of exploitation in the next 30 days, higher than 52.9% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.6/10
010
High · v3.1 (CVE.org)
EPSS score
0.71%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 28-02-2024
    PublishedVulnerability first disclosed.
  2. 16-08-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the External Border Gateway Protocol (eBGP) implementation of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because eBGP traffic is mapped to a shared hardware rate-limiter queue. An attacker could exploit this vulnerability by sending large amounts of network traffic with certain characteristics through an affected device. A successful exploit could allow the attacker to cause eBGP neighbor sessions to be dropped, leading to a DoS condition in the network.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.71%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

0.00 pp

From 0.71% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.71%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco2 products
  • cisco nx-os software7.0(3)F1(1) | 7.0(3)F2(1) | 7.0(3)F2(2) | 7.0(3)F3(1) | 7.0(3)F3(2) | 7.0(3)F3(3) | 7.0(3)F3(3a) | 7.0(3)F3(4) | 7.0(3)F3(3c) | 7.0(3)F3(5) | 9.2(1) | 9.2(2) | 9.2(2t) | 9.2(3) | 9.2(4) | 9.2(2v) | 9.3(1) | 9.3(2) | 9.3(3) | 9.3(4) | 9.3(5) | 9.3(6) | 9.3(7) | 9.3(7a) | 9.3(8) | 9.3(9) | 9.3(10) | 9.3(11) | 9.3(12) | 10.1(1) | 10.1(2) | 10.1(2t) | 10.2(1) | 10.2(1q) | 10.2(2) | 10.2(3) | 10.2(3t) | 10.2(4) | 10.2(5) | 10.2(3v) | 10.2(6) | 10.3(1) | 10.3(2) | 10.3(3) | 10.3(99w) | 10.3(99x) | 10.3(4a) | 10.4(1)
  • nx-os7.0\(3\)f1\(1\) | 7.0\(3\)f2\(1\) | 7.0\(3\)f2\(2\) | 7.0\(3\)f3\(1\) | 7.0\(3\)f3\(2\) | 7.0\(3\)f3\(3\) | 7.0\(3\)f3\(3a\) | 7.0\(3\)f3\(3c\) | 7.0\(3\)f3\(4\) | 7.0\(3\)f3\(5\) | 9.2\(1\) | 9.2\(2\) | 9.2\(2t\) | 9.2\(2v\) | 9.2\(3\) | 9.2\(4\) | 9.3\(1\) | 9.3\(2\) | 9.3\(3\) | 9.3\(4\) | 9.3\(5\) | 9.3\(6\) | 9.3\(7\) | 9.3\(7a\) | 9.3\(8\) | 9.3\(9\) | 9.3\(10\) | 9.3\(11\) | 9.3\(12\) | 10.1\(1\) | 10.1\(2\) | 10.1\(2t\) | 10.2\(1\) | 10.2\(1q\) | 10.2\(2\) | 10.2\(3\) | 10.2\(3t\) | 10.2\(3v\) | 10.2\(4\) | 10.2\(5\) | 10.2\(6\) | 10.3\(1\) | 10.3\(2\) | 10.3\(3\) | 10.3\(4a\) | 10.3\(99w\) | 10.3\(99x\) | 10.4\(1\)

1 vendor · 2 products

References

1 links