CVE-2023-30543

MEDIUMNVD 5.25.2—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.2 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 65% of all CVEs by exploit prediction. 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
5.2
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.2Exploit: NoneExposed: 0

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

@web3-react is a framework for building Ethereum Apps . In affected versions the chainId may be outdated if the user changes chains as part of the connection flow. This means that the value of chainId returned by useWeb3React() may be incorrect. In an application, this means that any data derived from chainId could be incorrect. For example, if a swapping application derives a wrapped token contract address from the chainId *and* a user has changed chains as part of their connection flow the application could cause the user to send funds to the incorrect address when wrapping. This issue has been addressed in PR #749 and is available in updated npm artifacts. There are no known workarounds for this issue. Users are advised to upgrade.

CVSS v3
5.2
EG Score
5.2(medium)
EPSS
29.9%
KEV
Not listed

Published

April 17, 2023

Last Modified

November 21, 2024

References (4)

Affected Packages

(4 across 1 ecosystem)
npm(4)
PackageVulnerable rangeFixed inDependents
@web3-react/coinbase-wallet—8.0.35-beta.0—
@web3-react/eip1193—8.0.27-beta—
@web3-react/metamask—8.0.30-beta.0—
@web3-react/walletconnect—8.0.37-beta.0—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 46× 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. 2026-07-12 05:45 UTCEPSS rescore
  2. 2026-07-11 08:25 UTCEPSS rescore
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  19. 2026-06-28 04:54 UTCEPSS rescore
  20. 2026-06-27 23:34 UTCOSV refresh
  21. 2026-06-27 03:07 UTCEPSS rescore
  22. 2026-06-25 13:48 UTCEPSS rescore
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  1. 2026-06-23 21:31 UTCEPSS rescore
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  9. 2026-06-19 19:24 UTCEPSS rescore
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  11. 2026-06-18 17:51 UTCEPSS rescore
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  21. 2026-06-12 23:10 UTCEPSS rescore
  22. 2026-06-11 13:59 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. 2026-06-10 10:17 UTCOSV refresh
  27. 2026-06-08 14:15 UTCEPSS rescore
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  37. 2026-06-04 13:11 UTCEPSS rescore
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  39. 2026-06-02 20:12 UTCEPSS rescore
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  42. 2026-06-01 13:51 UTCEPSS rescore
  43. 2026-05-31 22:29 UTCEPSS rescore
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  46. 2026-05-31 00:15 UTCEPSS rescore
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  48. 2026-05-29 13:43 UTCEPSS rescore
  49. 2026-05-28 13:43 UTCEPSS rescore
  50. 2026-05-28 13:43 UTCEPSS rescore
  51. 2026-05-27 13:39 UTCEPSS rescore
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  53. 2026-05-26 13:43 UTCEPSS rescore
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  55. 2026-05-26 07:18 UTCEPSS rescore
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  57. 2026-05-26 07:17 UTCEPSS rescore
  58. 2026-05-25 02:52 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-30543?
CVE-2023-30543 is a medium vulnerability published on April 17, 2023. @web3-react is a framework for building Ethereum Apps . In affected versions the chainId may be outdated if the user changes chains as part of the connection flow. This means that the value of chainId returned by useWeb3React() may be incorrect. In an application, this means that any data derived…
When was CVE-2023-30543 disclosed?
CVE-2023-30543 was first published in the National Vulnerability Database on April 17, 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-2023-30543 actively exploited?
CVE-2023-30543 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 29.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-30543?
CVE-2023-30543 has a CVSS v3 base score of 5.2 (NVD).
How do I remediate CVE-2023-30543?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-30543, 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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