CVE-2024-20260

HIGHNVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

Score 8.6 from GitHub Security Advisory (severity: HIGH) published 2024-10-23. NVD baseline CVSS 8.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 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 in the VPN and management web servers of the Cisco Adaptive Security Virtual Appliance (ASAv) and Cisco Secure Firewall Threat Defense Virtual (FTDv), formerly Cisco Firepower Threat Defense Virtual, platforms could allow an unauthenticated, remote attacker to cause the virtual devices to run out of system memory, which could cause SSL VPN connection processing to slow down and eventually cease all together. This vulnerability is due to a lack of proper memory management for new incoming SSL/TLS connections on the virtual platforms. An attacker could exploit this vulnerability by sending a large number of new incoming SSL/TLS connections to the targeted virtual platform. A successful exploit could allow the attacker to deplete system memory, resulting in a denial of service (DoS) condition. The memory could be reclaimed slowly if the attack traffic is stopped, but a manual reload may be required to restore operations quickly.

CVSS v3
8.6
EG Score
8.6(medium)
EPSS
45.7%
KEV
Not listed

Published

October 23, 2024

Last Modified

April 15, 2026

References (1)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× 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 104 total refreshes for this CVE.

  1. 2026-07-11 08:26 UTCEPSS rescore
  2. 2026-07-09 19:09 UTCEPSS rescore
  3. 2026-07-08 15:13 UTCEPSS rescore
  4. 2026-07-07 13:45 UTCEPSS rescore
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  6. 2026-07-06 16:26 UTCEPSS rescore
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  9. 2026-07-05 02:29 UTCEPSS rescore
  10. 2026-07-04 06:30 UTCEPSS rescore
  11. 2026-07-04 06:30 UTCEPSS rescore
  12. 2026-07-01 15:05 UTCEPSS rescore
  13. 2026-06-30 23:21 UTCEPSS rescore
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  15. 2026-06-29 14:05 UTCEPSS rescore
  16. 2026-06-28 14:06 UTCEPSS rescore
  17. 2026-06-28 14:06 UTCEPSS rescore
  18. 2026-06-28 04:55 UTCEPSS rescore
  19. 2026-06-27 03:07 UTCEPSS rescore
  20. 2026-06-27 03:07 UTCEPSS rescore
  21. 2026-06-25 13:48 UTCEPSS rescore
  22. 2026-06-24 14:04 UTCEPSS rescore
  23. 2026-06-24 14:04 UTCEPSS rescore
  24. 2026-06-23 21:32 UTCEPSS rescore
  25. 2026-06-23 21:31 UTCEPSS rescore
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  1. 2026-06-22 14:24 UTCEPSS rescore
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  3. 2026-06-21 14:55 UTCEPSS rescore
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  5. 2026-06-21 01:58 UTCEPSS rescore
  6. 2026-06-21 01:58 UTCEPSS rescore
  7. 2026-06-19 19:24 UTCEPSS rescore
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  9. 2026-06-18 17:51 UTCEPSS rescore
  10. 2026-06-17 17:52 UTCEPSS rescore
  11. 2026-06-17 17:51 UTCEPSS rescore
  12. 2026-06-16 17:51 UTCEPSS rescore
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  14. 2026-06-15 17:47 UTCEPSS rescore
  15. 2026-06-14 23:16 UTCEPSS rescore
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  18. 2026-06-12 23:11 UTCEPSS rescore
  19. 2026-06-12 23:11 UTCEPSS rescore
  20. 2026-06-11 13:59 UTCEPSS rescore
  21. 2026-06-11 13:59 UTCEPSS rescore
  22. 2026-06-10 22:17 UTCEPSS rescore
  23. 2026-06-10 22:17 UTCEPSS rescore
  24. 2026-06-10 13:21 UTCEPSS rescore
  25. 2026-06-10 13:21 UTCEPSS rescore
  26. 2026-06-08 14:16 UTCEPSS rescore
  27. 2026-06-08 14:16 UTCEPSS rescore
  28. 2026-06-07 15:24 UTCEPSS rescore
  29. 2026-06-07 15:24 UTCEPSS rescore
  30. 2026-06-06 13:46 UTCEPSS rescore
  31. 2026-06-06 13:46 UTCEPSS rescore
  32. 2026-06-05 22:46 UTCEPSS rescore
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  34. 2026-06-05 06:09 UTCEPSS rescore
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  36. 2026-06-04 13:11 UTCEPSS rescore
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  39. 2026-06-02 20:12 UTCEPSS rescore
  40. 2026-06-02 20:12 UTCEPSS rescore
  41. 2026-06-01 13:51 UTCEPSS rescore
  42. 2026-06-01 13:51 UTCEPSS rescore
  43. 2026-05-31 22:30 UTCEPSS rescore
  44. 2026-05-31 22:30 UTCEPSS rescore
  45. 2026-05-31 00:15 UTCEPSS rescore
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  47. 2026-05-29 13:43 UTCEPSS rescore
  48. 2026-05-28 13:44 UTCEPSS rescore
  49. 2026-05-28 13:44 UTCEPSS rescore
  50. 2026-05-28 13:44 UTCEPSS rescore
  51. 2026-05-27 13:40 UTCEPSS rescore
  52. 2026-05-26 13:43 UTCEPSS rescore
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  54. 2026-05-26 07:18 UTCEPSS rescore
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  62. 2026-05-21 22:42 UTCEPSS rescore
  63. 2026-05-21 22:31 UTCEG score recompute
  64. 2026-05-21 22:31 UTCGHSA enrichment
  65. 2026-05-20 22:37 UTCEPSS rescore
  66. 2026-05-20 22:37 UTCEPSS rescore
  67. 2026-05-20 22:37 UTCEPSS rescore
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  70. 2026-05-20 11:21 UTCEPSS rescore
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  75. 2026-05-20 11:21 UTCEPSS rescore

Frequently asked(5)

What is CVE-2024-20260?
CVE-2024-20260 is a high vulnerability published on October 23, 2024. A vulnerability in the VPN and management web servers of the Cisco Adaptive Security Virtual Appliance (ASAv) and Cisco Secure Firewall Threat Defense Virtual (FTDv), formerly Cisco Firepower Threat Defense Virtual, platforms could allow an unauthenticated, remote attacker to cause the virtual…
When was CVE-2024-20260 disclosed?
CVE-2024-20260 was first published in the National Vulnerability Database on October 23, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-20260 actively exploited?
CVE-2024-20260 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 45.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-20260?
CVE-2024-20260 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2024-20260?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-20260, 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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