CVE-2022-43970

HIGHNVD 7.27.2—
EchelonGraph scoreMEDIUM confidence

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2023-01-09. NVD baseline CVSS 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 19%CVSS: 7.2Exploit: NoneExposed: 0

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

A buffer overflow vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. A stack-based buffer overflow in the Start_EPI function within the httpd binary allows an authenticated attacker with administrator privileges to execute arbitrary commands on the underlying Linux operating system as root. This vulnerablity can be triggered over the network via a malicious POST request to /apply.cgi.

CVSS v3
7.2
EG Score
7.2(medium)
EPSS
97.0%
KEV
Not listed

Published

January 9, 2023

Last Modified

November 21, 2024

References (6)

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 35× 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. 2026-07-21 15:23 UTCEPSS rescore
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  3. 2026-07-20 17:05 UTCEPSS rescore
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  1. 2026-06-28 04:54 UTCEPSS rescore
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  5. 2026-06-25 13:48 UTCEPSS rescore
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  7. 2026-06-24 14:03 UTCEPSS rescore
  8. 2026-06-23 21:31 UTCEPSS rescore
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  10. 2026-06-22 14:24 UTCEPSS rescore
  11. 2026-06-21 01:58 UTCEPSS rescore
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  22. 2026-06-13 22:59 UTCEPSS rescore
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  25. 2026-06-11 13:58 UTCEPSS rescore
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  27. 2026-06-10 22:17 UTCEPSS rescore
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  43. 2026-06-01 13:50 UTCEPSS rescore
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  45. 2026-05-31 22:29 UTCEPSS rescore
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  47. 2026-05-31 00:15 UTCEPSS rescore
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  49. 2026-05-29 13:43 UTCEPSS rescore
  50. 2026-05-28 13:43 UTCEPSS rescore
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  52. 2026-05-27 13:39 UTCEPSS rescore
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  57. 2026-05-26 07:17 UTCEPSS rescore
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  59. 2026-05-26 07:17 UTCEPSS rescore
  60. 2026-05-25 09:03 UTCEG score recompute
  61. 2026-05-25 09:03 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2022-43970?
CVE-2022-43970 is a high vulnerability published on January 9, 2023. A buffer overflow vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. A stack-based buffer overflow in the Start_EPI function within the httpd binary allows an authenticated attacker with administrator privileges to execute arbitrary commands on the…
When was CVE-2022-43970 disclosed?
CVE-2022-43970 was first published in the National Vulnerability Database on January 9, 2023, 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-2022-43970 actively exploited?
CVE-2022-43970 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-43970?
CVE-2022-43970 has a CVSS v3 base score of 7.2 (NVD).
How do I remediate CVE-2022-43970?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-43970, 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

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