CVE-2022-24942

CRITICALNVD 9.19.8▲
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-11-16. NVD baseline CVSS 9.1; sources differ by 0.7.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 9.1Exploit: Elevated riskExposed: 0

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

Heap based buffer overflow in HTTP Server functionality in Micrium uC-HTTP 3.01.01 allows remote code execution via HTTP request.

CVSS v3
9.1
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
2%
EPSS %ILE
80%
KEV
Not listed

Published

November 15, 2022

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Jul 22, 2026
No patch confirmed yet.
generic

Blaming gecko_sdk/platform/micrium_os/net/source/http/server/http_server_req.c at v4.1.1 · SiliconLabs/gecko_sdk · GitHub

https://github.com/SiliconLabs/gecko_sdk/blame/v4.1.1/platform/micrium_os/net/source/http/server/http_server_req.c
generic
https://community.silabs.com/sfc/servlet.shepherd/document/download/0698Y00000KlMPOQA3?operationContext=S1

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 4× in last 7d / 25× 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 142 total refreshes for this CVE.

  1. 2026-09-17 19:23 UTCEPSS rescore
  2. 2026-09-16 14:05 UTCEPSS rescore
  3. 2026-09-15 03:06 UTCEPSS rescore
  4. 2026-09-13 16:43 UTCEPSS rescore
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  1. 2026-08-19 17:01 UTCEPSS rescore
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  23. 2026-07-25 14:15 UTCEPSS rescore
  24. 2026-07-24 14:15 UTCEPSS rescore
  25. 2026-07-23 14:16 UTCEPSS rescore
  26. 2026-07-23 02:09 UTCEG score recompute
  27. 2026-07-22 22:56 UTCEG score recompute
  28. 2026-07-22 14:06 UTCEPSS rescore
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  30. 2026-07-21 15:22 UTCEPSS rescore
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  43. 2026-07-13 22:27 UTCEPSS rescore
  44. 2026-07-12 05:44 UTCEPSS rescore
  45. 2026-07-11 08:25 UTCEPSS rescore
  46. 2026-07-09 19:07 UTCEPSS rescore
  47. 2026-07-08 15:12 UTCEPSS rescore
  48. 2026-07-07 13:44 UTCEPSS rescore
  49. 2026-07-06 16:25 UTCEPSS rescore
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  51. 2026-07-06 02:21 UTCEPSS rescore
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  63. 2026-06-27 03:07 UTCEPSS rescore
  64. 2026-06-25 13:48 UTCEPSS rescore
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  67. 2026-06-23 21:31 UTCEPSS rescore
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  69. 2026-06-22 14:24 UTCEPSS rescore
  70. 2026-06-21 14:55 UTCEPSS rescore
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  72. 2026-06-21 01:58 UTCEPSS rescore
  73. 2026-06-21 01:58 UTCEPSS rescore
  74. 2026-06-19 19:24 UTCEPSS rescore
  75. 2026-06-19 19:24 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2022-24942?
CVE-2022-24942 is a critical vulnerability published on November 15, 2022. Heap based buffer overflow in HTTP Server functionality in Micrium uC-HTTP 3.01.01 allows remote code execution via HTTP request.
When was CVE-2022-24942 disclosed?
CVE-2022-24942 was first published in the National Vulnerability Database on November 15, 2022, 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-2022-24942 actively exploited?
CVE-2022-24942 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 20.0% of all scored CVEs.
What is the CVSS score of CVE-2022-24942?
CVE-2022-24942 has a CVSS v3 base score of 9.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.
How do I remediate CVE-2022-24942?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-24942, 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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