CVE-2024-20267

HIGHNVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

Score 8.6 from GitHub Security Advisory (severity: HIGH) published 2024-02-29. NVD baseline CVSS 8.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.6Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability with the handling of MPLS traffic for Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the netstack process to unexpectedly restart, which could cause the device to stop processing network traffic or to reload. This vulnerability is due to lack of proper error checking when processing an ingress MPLS frame. An attacker could exploit this vulnerability by sending a crafted IPv6 packet that is encapsulated within an MPLS frame to an MPLS-enabled interface of the targeted device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition. Note: The IPv6 packet can be generated multiple hops away from the targeted device and then encapsulated within MPLS. The DoS condition may occur when the NX-OS device processes the packet.

CVSS v3
8.6
EG Score
8.6(medium)
EG Risk
54(Track)
EG Risk 54/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity86% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
57%
KEV
Not listed

Published

February 29, 2024

Last Modified

November 21, 2024

References (2)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 107 total refreshes for this CVE.

  1. 2026-07-26 14:53 UTCEPSS rescore
  2. 2026-07-26 14:53 UTCEPSS rescore
  3. 2026-07-25 14:16 UTCEPSS rescore
  4. 2026-07-23 14:17 UTCEPSS rescore
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  6. 2026-07-23 02:33 UTCEG score recompute
  7. 2026-07-22 23:19 UTCEG score recompute
  8. 2026-07-22 14:07 UTCEPSS rescore
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  10. 2026-07-20 17:06 UTCEPSS rescore
  11. 2026-07-19 14:30 UTCEPSS rescore
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  20. 2026-07-13 22:28 UTCEPSS rescore
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  25. 2026-07-11 08:26 UTCEPSS rescore
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  1. 2026-07-09 19:09 UTCEPSS rescore
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  3. 2026-07-07 13:45 UTCEPSS rescore
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  5. 2026-07-06 16:26 UTCEPSS rescore
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  20. 2026-06-25 13:48 UTCEPSS rescore
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  23. 2026-06-23 21:32 UTCEPSS rescore
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  25. 2026-06-22 14:24 UTCEPSS rescore
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  27. 2026-06-21 14:55 UTCEPSS rescore
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  29. 2026-06-21 01:58 UTCEPSS rescore
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  31. 2026-06-19 19:24 UTCEPSS rescore
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  33. 2026-06-18 17:51 UTCEPSS rescore
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  39. 2026-06-14 23:16 UTCEPSS rescore
  40. 2026-06-13 22:59 UTCEPSS rescore
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  42. 2026-06-12 23:11 UTCEPSS rescore
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  44. 2026-06-11 13:59 UTCEPSS rescore
  45. 2026-06-11 13:59 UTCEPSS rescore
  46. 2026-06-10 22:17 UTCEPSS rescore
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  48. 2026-06-10 13:21 UTCEPSS rescore
  49. 2026-06-10 13:21 UTCEPSS rescore
  50. 2026-06-08 14:16 UTCEPSS rescore
  51. 2026-06-08 14:16 UTCEPSS rescore
  52. 2026-06-07 15:24 UTCEPSS rescore
  53. 2026-06-07 15:24 UTCEPSS rescore
  54. 2026-06-06 13:46 UTCEPSS rescore
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  56. 2026-06-05 22:46 UTCEPSS rescore
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  58. 2026-06-05 06:09 UTCEPSS rescore
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  60. 2026-06-04 13:11 UTCEPSS rescore
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  63. 2026-06-02 20:12 UTCEPSS rescore
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  65. 2026-06-01 13:51 UTCEPSS rescore
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  67. 2026-05-31 22:30 UTCEPSS rescore
  68. 2026-05-31 22:30 UTCEPSS rescore
  69. 2026-05-31 00:15 UTCEPSS rescore
  70. 2026-05-31 00:15 UTCEPSS rescore
  71. 2026-05-29 13:43 UTCEPSS rescore
  72. 2026-05-28 13:44 UTCEPSS rescore
  73. 2026-05-28 13:44 UTCEPSS rescore
  74. 2026-05-28 13:44 UTCEPSS rescore
  75. 2026-05-27 13:40 UTCEPSS rescore

Frequently asked(5)

What is CVE-2024-20267?
CVE-2024-20267 is a high vulnerability published on February 29, 2024. A vulnerability with the handling of MPLS traffic for Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the netstack process to unexpectedly restart, which could cause the device to stop processing network traffic or to reload. This vulnerability is due to lack of proper…
When was CVE-2024-20267 disclosed?
CVE-2024-20267 was first published in the National Vulnerability Database on February 29, 2024, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-20267 actively exploited?
CVE-2024-20267 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 43.2% of all scored CVEs.
What is the CVSS score of CVE-2024-20267?
CVE-2024-20267 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2024-20267?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-20267, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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