HIGH
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
Published Feb 28, 2024
8.6
HIGHCVSS 3.1
EPSS 0.71%
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.
Affected products
-
- Version 10.1(1)StatusaffectedConstraints-
- Version 10.1(2)StatusaffectedConstraints-
- Version 10.1(2t)StatusaffectedConstraints-
- Version 10.2(1)StatusaffectedConstraints-
- Version 10.2(1q)StatusaffectedConstraints-
- Version 10.2(2)StatusaffectedConstraints-
- Version 10.2(3)StatusaffectedConstraints-
- Version 10.2(3t)StatusaffectedConstraints-
- Version 10.2(3v)StatusaffectedConstraints-
- Version 10.2(4)StatusaffectedConstraints-
- Version 10.2(5)StatusaffectedConstraints-
- Version 10.2(6)StatusaffectedConstraints-
- Version 10.3(1)StatusaffectedConstraints-
- Version 10.3(2)StatusaffectedConstraints-
- Version 10.3(3)StatusaffectedConstraints-
- Version 10.3(4a)StatusaffectedConstraints-
- Version 10.3(99w)StatusaffectedConstraints-
- Version 10.3(99x)StatusaffectedConstraints-
- Version 10.4(1)StatusaffectedConstraints-
- Version 7.0(3)F1(1)StatusaffectedConstraints-
- Version 7.0(3)F2(1)StatusaffectedConstraints-
- Version 7.0(3)F2(2)StatusaffectedConstraints-
- Version 7.0(3)F3(1)StatusaffectedConstraints-
- Version 7.0(3)F3(2)StatusaffectedConstraints-
- Version 7.0(3)F3(3)StatusaffectedConstraints-
- Version 7.0(3)F3(3a)StatusaffectedConstraints-
- Version 7.0(3)F3(3c)StatusaffectedConstraints-
- Version 7.0(3)F3(4)StatusaffectedConstraints-
- Version 7.0(3)F3(5)StatusaffectedConstraints-
- Version 9.2(1)StatusaffectedConstraints-
- Version 9.2(2)StatusaffectedConstraints-
- Version 9.2(2t)StatusaffectedConstraints-
- Version 9.2(2v)StatusaffectedConstraints-
- Version 9.2(3)StatusaffectedConstraints-
- Version 9.2(4)StatusaffectedConstraints-
- Version 9.3(1)StatusaffectedConstraints-
- Version 9.3(10)StatusaffectedConstraints-
- Version 9.3(11)StatusaffectedConstraints-
- Version 9.3(12)StatusaffectedConstraints-
- Version 9.3(2)StatusaffectedConstraints-
- Version 9.3(3)StatusaffectedConstraints-
- Version 9.3(4)StatusaffectedConstraints-
- Version 9.3(5)StatusaffectedConstraints-
- Version 9.3(6)StatusaffectedConstraints-
- Version 9.3(7)StatusaffectedConstraints-
- Version 9.3(7a)StatusaffectedConstraints-
- Version 9.3(8)StatusaffectedConstraints-
- Version 9.3(9)StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cisco | Cisco NX-OS Software | n/a |
|
OR
- 7.0\(3\)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\(1\)
-
- Version 10.1\(1\)StatusaffectedConstraints-
- Version 10.1\(2\)StatusaffectedConstraints-
- Version 10.1\(2t\)StatusaffectedConstraints-
- Version 10.2\(1\)StatusaffectedConstraints-
- Version 10.2\(1q\)StatusaffectedConstraints-
- Version 10.2\(2\)StatusaffectedConstraints-
- Version 10.2\(3\)StatusaffectedConstraints-
- Version 10.2\(3t\)StatusaffectedConstraints-
- Version 10.2\(3v\)StatusaffectedConstraints-
- Version 10.2\(4\)StatusaffectedConstraints-
- Version 10.2\(5\)StatusaffectedConstraints-
- Version 10.2\(6\)StatusaffectedConstraints-
- Version 10.3\(1\)StatusaffectedConstraints-
- Version 10.3\(2\)StatusaffectedConstraints-
- Version 10.3\(3\)StatusaffectedConstraints-
- Version 10.3\(4a\)StatusaffectedConstraints-
- Version 10.3\(99w\)StatusaffectedConstraints-
- Version 10.3\(99x\)StatusaffectedConstraints-
- Version 10.4\(1\)StatusaffectedConstraints-
- Version 7.0\(3\)f1\(1\)StatusaffectedConstraints-
- Version 7.0\(3\)f2\(1\)StatusaffectedConstraints-
- Version 7.0\(3\)f2\(2\)StatusaffectedConstraints-
- Version 7.0\(3\)f3\(1\)StatusaffectedConstraints-
- Version 7.0\(3\)f3\(2\)StatusaffectedConstraints-
- Version 7.0\(3\)f3\(3\)StatusaffectedConstraints-
- Version 7.0\(3\)f3\(3a\)StatusaffectedConstraints-
- Version 7.0\(3\)f3\(3c\)StatusaffectedConstraints-
- Version 7.0\(3\)f3\(4\)StatusaffectedConstraints-
- Version 7.0\(3\)f3\(5\)StatusaffectedConstraints-
- Version 9.2\(1\)StatusaffectedConstraints-
- Version 9.2\(2\)StatusaffectedConstraints-
- Version 9.2\(2t\)StatusaffectedConstraints-
- Version 9.2\(2v\)StatusaffectedConstraints-
- Version 9.2\(3\)StatusaffectedConstraints-
- Version 9.2\(4\)StatusaffectedConstraints-
- Version 9.3\(10\)StatusaffectedConstraints-
- Version 9.3\(11\)StatusaffectedConstraints-
- Version 9.3\(12\)StatusaffectedConstraints-
- Version 9.3\(1\)StatusaffectedConstraints-
- Version 9.3\(2\)StatusaffectedConstraints-
- Version 9.3\(3\)StatusaffectedConstraints-
- Version 9.3\(4\)StatusaffectedConstraints-
- Version 9.3\(5\)StatusaffectedConstraints-
- Version 9.3\(6\)StatusaffectedConstraints-
- Version 9.3\(7\)StatusaffectedConstraints-
- Version 9.3\(7a\)StatusaffectedConstraints-
- Version 9.3\(8\)StatusaffectedConstraints-
- Version 9.3\(9\)StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cisco | NX-OS | n/a |
|
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
8.6 HIGH NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality Impact None
Integrity Impact None
Availability Impact High
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Mar 1, 2024 · SSVC 2.0.3
0.71% 0.00709
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00709
Score over time
2024–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (7 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.71% (0.00709) | 51.79th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.71% (0.00709) | 48.48th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.42% (0.00421) | 59.89th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00046) | 19.03th | v3 (v2023.03.01) |
| May 8, 2024 | 0.05% (0.00046) | 16.04th | v3 (v2023.03.01) |
| Mar 5, 2024 | 0.05% (0.00046) | 14.03th | v3 (v2023.03.01) |
| Feb 29, 2024 | 0.04% (0.00043) | 6.92th | v3 (v2023.03.01) |
References (1)
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner cisco
Published Feb 28, 2024
Updated Aug 16, 2024
Reserved Nov 8, 2023
Link CVE-2024-20321
CISA Vulnrichment
Updated Mar 1, 2024