CVE-2021-43614

MEDIUMPre-NVD 6.76.7—
EchelonGraph scoreHIGH confidence

Score 6.7 from GitHub Security Advisory published 2026-09-03. a secondary CVSS source baseline 6.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.7Exploit: None knownExposed: 0

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

Error in handling the PlatformLangCodes UEFI variable could cause a buffer overflow, leading to resource exhaustion and failure.

CVSS v3
6.7
EG Score
6.7(high)
EG Risk
30(Track)
EG Risk 30/100SSVC: 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
Severity67% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

September 3, 2026

Last Modified

September 3, 2026

Advisory Details (1)

Auto-updated Sep 3, 2026
Patch available.
generic Patch Available

SA-2022026 - Insyde Software

https://www.insyde.com/security-pledge/sa-2022026/

Vendor Advisories for CVE-2021-43614(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 48× 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.

  1. 2026-09-20 20:13 UTCEPSS rescore
  2. 2026-09-20 09:50 UTCEG score recompute
  3. 2026-09-20 09:50 UTCGHSA enrichment
  4. 2026-09-19 15:38 UTCEPSS rescore
  5. 2026-09-19 08:54 UTCEG score recompute
  6. 2026-09-19 08:54 UTCGHSA enrichment
  7. 2026-09-18 19:23 UTCEPSS rescore
  8. 2026-09-18 07:54 UTCGHSA enrichment
  9. 2026-09-17 06:57 UTCEG score recompute
  10. 2026-09-17 06:57 UTCGHSA enrichment
  11. 2026-09-16 14:05 UTCEPSS rescore
  12. 2026-09-16 06:00 UTCGHSA enrichment
  13. 2026-09-15 05:04 UTCEG score recompute
  14. 2026-09-15 05:04 UTCGHSA enrichment
  15. 2026-09-15 03:06 UTCEPSS rescore
  16. 2026-09-14 03:59 UTCEG score recompute
  17. 2026-09-14 03:59 UTCGHSA enrichment
  18. 2026-09-13 03:03 UTCEG score recompute
  19. 2026-09-13 03:03 UTCGHSA enrichment
  20. 2026-09-12 14:57 UTCEPSS rescore
  21. 2026-09-12 02:06 UTCEG score recompute
  22. 2026-09-12 02:06 UTCGHSA enrichment
  23. 2026-09-11 14:49 UTCEPSS rescore
  24. 2026-09-11 09:33 UTCEPSS rescore
  25. 2026-09-11 01:09 UTCEG score recompute
Show 23 more
  1. 2026-09-11 01:09 UTCGHSA enrichment
  2. 2026-09-10 00:09 UTCGHSA enrichment
  3. 2026-09-08 23:10 UTCEG score recompute
  4. 2026-09-08 23:10 UTCGHSA enrichment
  5. 2026-09-08 21:56 UTCEPSS rescore
  6. 2026-09-07 22:06 UTCEG score recompute
  7. 2026-09-07 22:06 UTCGHSA enrichment
  8. 2026-09-07 15:58 UTCEPSS rescore
  9. 2026-09-06 21:09 UTCEG score recompute
  10. 2026-09-06 21:09 UTCGHSA enrichment
  11. 2026-09-06 13:45 UTCEPSS rescore
  12. 2026-09-05 20:11 UTCGHSA enrichment
  13. 2026-09-04 19:15 UTCEG score recompute
  14. 2026-09-04 19:15 UTCGHSA enrichment
  15. 2026-09-04 13:57 UTCEPSS rescore
  16. 2026-09-04 05:03 UTCEPSS rescore
  17. 2026-09-03 18:19 UTCEG score recompute
  18. 2026-09-03 18:18 UTCGHSA enrichment
  19. 2026-09-03 14:30 UTCEG score recompute
  20. 2026-09-03 13:25 UTCEG score recompute
  21. 2026-09-03 13:05 UTCEG score recompute
  22. 2026-09-03 03:26 UTCEG score recompute
  23. 2026-09-03 03:24 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2021-43614?
CVE-2021-43614 is a medium vulnerability published on September 3, 2026. Error in handling the PlatformLangCodes UEFI variable could cause a buffer overflow, leading to resource exhaustion and failure.
When was CVE-2021-43614 disclosed?
CVE-2021-43614 was first published in the National Vulnerability Database on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-43614 actively exploited?
CVE-2021-43614 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 96.9% of all scored CVEs.
What is the CVSS score of CVE-2021-43614?
CVE-2021-43614 has a CVSS v3 base score of 6.7 (NVD).
How do I remediate CVE-2021-43614?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-43614, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2021-43614

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