CVE-2025-32421

LOWNVD 3.73.7—
EchelonGraph scoreMEDIUM confidence

This low-severity CVE scores 3.7 under NVD CVSS v3. EPSS exploit probability: 0.8%, top 27% 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
3.7
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 3.7Exploit: NoneExposed: 0

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

Next.js is a React framework for building full-stack web applications. Versions prior to 14.2.24 and 15.1.6 have a race-condition vulnerability. This issue only affects the Pages Router under certain misconfigurations, causing normal endpoints to serve pageProps data instead of standard HTML. This issue was patched in versions 15.1.6 and 14.2.24 by stripping the x-now-route-matches header from incoming requests. Applications hosted on Vercel's platform are not affected by this issue, as the platform does not cache responses based solely on 200 OK status without explicit cache-control headers. Those who self-host Next.js deployments and are unable to upgrade immediately can mitigate this vulnerability by stripping the x-now-route-matches header from all incoming requests at the content development network and setting cache-control: no-store for all responses under risk. The maintainers of Next.js strongly recommend only caching responses with explicit cache-control headers.

CVSS v3
3.7
EG Score
3.7(medium)
EG Risk
—
EPSS
48.0%
KEV
Not listed

Published

May 14, 2025

Last Modified

September 10, 2025

References (2)

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
next—15.1.6—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× 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. 2026-07-22 14:07 UTCEPSS rescore
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-21 15:24 UTCEPSS rescore
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Show 65 more
  1. 2026-07-07 13:45 UTCEPSS rescore
  2. 2026-07-07 01:21 UTCOSV refresh
  3. 2026-07-06 16:27 UTCEPSS rescore
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  18. 2026-06-25 13:49 UTCEPSS rescore
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  22. 2026-06-23 21:32 UTCEPSS rescore
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  30. 2026-06-19 19:25 UTCEPSS rescore
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  34. 2026-06-18 12:35 UTCOSV refresh
  35. 2026-06-17 17:52 UTCEPSS rescore
  36. 2026-06-16 17:52 UTCEPSS rescore
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  38. 2026-06-15 17:48 UTCEPSS rescore
  39. 2026-06-13 23:00 UTCEPSS rescore
  40. 2026-06-13 23:00 UTCEPSS rescore
  41. 2026-06-12 23:11 UTCEPSS rescore
  42. 2026-06-11 13:59 UTCEPSS rescore
  43. 2026-06-10 22:18 UTCEPSS rescore
  44. 2026-06-10 13:22 UTCEPSS rescore
  45. 2026-06-08 14:16 UTCEPSS rescore
  46. 2026-06-08 14:16 UTCEPSS rescore
  47. 2026-06-07 15:24 UTCEPSS rescore
  48. 2026-06-07 15:24 UTCEPSS rescore
  49. 2026-06-06 13:47 UTCEPSS rescore
  50. 2026-06-06 13:47 UTCEPSS rescore
  51. 2026-06-05 22:46 UTCEPSS rescore
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  53. 2026-06-05 06:10 UTCEPSS rescore
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  55. 2026-06-04 13:12 UTCEPSS rescore
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  58. 2026-06-01 13:51 UTCEPSS rescore
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  60. 2026-05-31 22:30 UTCEPSS rescore
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  62. 2026-05-31 00:16 UTCEPSS rescore
  63. 2026-05-31 00:16 UTCEPSS rescore
  64. 2026-05-30 05:27 UTCEG score recompute
  65. 2026-05-29 13:44 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCDelfaster/CVE-2025-32421---Race-Condition-Vulnerability---Next.js
    First seen Nov 26, 2025

    PoC Lab for CVE-2025-32421 – Next.js Race Condition Cache Poisoning Simulation

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-32421?
CVE-2025-32421 is a low vulnerability published on May 14, 2025. Next.js is a React framework for building full-stack web applications. Versions prior to 14.2.24 and 15.1.6 have a race-condition vulnerability. This issue only affects the Pages Router under certain misconfigurations, causing normal endpoints to serve pageProps data instead of standard HTML. This…
When was CVE-2025-32421 disclosed?
CVE-2025-32421 was first published in the National Vulnerability Database on May 14, 2025, with the most recent update on September 10, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-32421 actively exploited?
CVE-2025-32421 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 48.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-32421?
CVE-2025-32421 has a CVSS v3 base score of 3.7 (NVD).
How do I remediate CVE-2025-32421?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-32421, 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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