# CVE-2025-9287: Missing type checks leading to hash rewind and passing on crafted data

> CVE-2025-9287: Missing type checks leading to hash rewind and passing on crafted data. CVSS 9.1 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-9287
Last updated: 2026-06-17T10:08:40Z

- Published: 2025-08-20 21:43 UTC · Updated: 2026-06-17 10:08 UTC · Assigner: harborist
- CVSS: 9.1 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- EPSS: 0.55%, 46th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-20

## Description

Improper Input Validation vulnerability in cipher-base allows Input Data Manipulation.This issue affects cipher-base: through 1.0.4.

## Affected vendors and products

_None listed._

## Tracked companies

- [Jira](https://rewindex.com/company/jira.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-9287)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-9287)
- [https://github.com/browserify/cipher-base/pull/23](https://github.com/browserify/cipher-base/pull/23)
- [https://github.com/browserify/cipher-base/security/advisories/GHSA-cpq7-6gpm-g9rc](https://github.com/browserify/cipher-base/security/advisories/GHSA-cpq7-6gpm-g9rc)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-9287 · Markdown: https://rewindex.com/cve/CVE-2025-9287.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-9287 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:09:27.200Z