CVE-2025-43865

HIGHNVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.2 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 47% 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
Elevated
8.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.2Exploit: NoneExposed: 0

A fix is available — apply it.

React Router is a router for React. In versions on the 7.0 branch prior to version 7.5.2, it's possible to modify pre-rendered data by adding a header to the request. This allows to completely spoof its contents and modify all the values ​​of the data object passed to the HTML. This issue has been patched in version 7.5.2.

CVSS v3
8.2
EG Score
8.2(medium)
EPSS
52.6%
KEV
Not listed

Published

April 25, 2025

Last Modified

April 15, 2026

References (3)

Vendor Advisories for CVE-2025-43865(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhoai/odh-dashboard-rhel9:v2.23.0-17544175092025-08-14redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
react-router—7.5.2—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 49× 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 126 total refreshes for this CVE.

  1. 2026-07-22 14:07 UTCEPSS rescore
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
  4. 2026-07-20 17:07 UTCEPSS rescore
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  22. 2026-07-10 13:41 UTCOSV refresh
  23. 2026-07-09 19:09 UTCEPSS rescore
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  25. 2026-07-08 15:15 UTCEPSS rescore
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  1. 2026-07-07 13:45 UTCEPSS rescore
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  25. 2026-06-22 14:25 UTCEPSS rescore
  26. 2026-06-22 14:25 UTCEPSS rescore
  27. 2026-06-21 22:42 UTCOSV refresh
  28. 2026-06-21 14:56 UTCEPSS rescore
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  30. 2026-06-21 01:59 UTCEPSS rescore
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  32. 2026-06-19 19:25 UTCEPSS rescore
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  40. 2026-06-15 17:48 UTCEPSS rescore
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  46. 2026-06-10 22:18 UTCEPSS rescore
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  48. 2026-06-10 13:22 UTCEPSS rescore
  49. 2026-06-08 14:16 UTCEPSS rescore
  50. 2026-06-08 14:16 UTCEPSS rescore
  51. 2026-06-07 15:24 UTCEPSS rescore
  52. 2026-06-06 13:47 UTCEPSS rescore
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  54. 2026-06-05 22:46 UTCEPSS rescore
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  60. 2026-06-03 09:10 UTCOSV refresh
  61. 2026-06-02 20:12 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2025-43865?
CVE-2025-43865 is a high vulnerability published on April 25, 2025. React Router is a router for React. In versions on the 7.0 branch prior to version 7.5.2, it's possible to modify pre-rendered data by adding a header to the request. This allows to completely spoof its contents and modify all the values ​​of the data object passed to the HTML. This issue has been…
When was CVE-2025-43865 disclosed?
CVE-2025-43865 was first published in the National Vulnerability Database on April 25, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-43865 actively exploited?
CVE-2025-43865 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 52.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-43865?
CVE-2025-43865 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2025-43865?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-43865, 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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