CVE-2020-24384

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 3.5% (88th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3.5%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

A10 Networks ACOS and aGalaxy management Graphical User Interfaces (GUIs) have an unauthenticated Remote Code Execution (RCE) vulnerability that could be used to compromise affected ACOS systems. ACOS versions 3.2.x (including and after 3.2.2), 4.x, and 5.1.x are affected. aGalaxy versions 3.0.x, 3.2.x, and 5.0.x are affected.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
50
EG Risk 50/100CISA SSVC

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
Severity98% × 45%
Exploitation4% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
3.5%
EPSS %ILE
88th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

November 10, 2020

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated Oct 4, 2026
Fix referenced — no release confirmed yet.
generic

ACOS/aGalaxy GUI RCE Vulnerability - CVE-2020-24384 - A10 Support

https://support.a10networks.com/support/security_advisory/acos-agalaxy-gui-rce-vulnerability-cve-2020-24384

Data Freshness Timeline

(refreshed 7× in last 7d / 26× 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 160 total refreshes for this CVE.

  1. 2026-10-06 15:13 UTCEPSS rescore
  2. 2026-10-05 17:39 UTCEPSS rescore
  3. 2026-10-04 23:18 UTCEPSS rescore
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  6. 2026-09-30 15:15 UTCEG score recompute
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  1. 2026-09-07 15:57 UTCEPSS rescore
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  24. 2026-08-08 16:33 UTCEPSS rescore
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  26. 2026-08-06 13:43 UTCEPSS rescore
  27. 2026-08-05 19:14 UTCEPSS rescore
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  41. 2026-07-23 14:15 UTCEPSS rescore
  42. 2026-07-23 14:15 UTCEPSS rescore
  43. 2026-07-23 01:51 UTCEG score recompute
  44. 2026-07-22 22:37 UTCEG score recompute
  45. 2026-07-22 14:05 UTCEPSS rescore
  46. 2026-07-21 15:22 UTCEPSS rescore
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  48. 2026-07-20 17:04 UTCEPSS rescore
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  50. 2026-07-19 14:28 UTCEPSS rescore
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  73. 2026-07-01 15:03 UTCEPSS rescore
  74. 2026-06-30 23:20 UTCEPSS rescore
  75. 2026-06-30 23:20 UTCEPSS rescore

Frequently asked(5)

What is CVE-2020-24384?
CVE-2020-24384 is a critical vulnerability published on November 10, 2020. A10 Networks ACOS and aGalaxy management Graphical User Interfaces (GUIs) have an unauthenticated Remote Code Execution (RCE) vulnerability that could be used to compromise affected ACOS systems. ACOS versions 3.2.x (including and after 3.2.2), 4.x, and 5.1.x are affected. aGalaxy versions 3.0.x,…
When was CVE-2020-24384 disclosed?
CVE-2020-24384 was first published on November 10, 2020, 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-2020-24384 actively exploited?
CVE-2020-24384 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.5% probability of exploitation in the next 30 days (88th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2020-24384?
CVE-2020-24384 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2020-24384?
A fix for CVE-2020-24384 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

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