CVE-2025-55305
CVE-2025-55305 is a medium-severity vulnerability with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- EPSS exploit prediction: 0% (18th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-26873
- Weakness: CWE-94
- Published:
- Last modified:
Description
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. In versions below 35.7.5, 36.0.0-alpha.1 through 36.8.0, 37.0.0-alpha.1 through 37.3.1 and 38.0.0-alpha.1 through 38.0.0-beta.6, ASAR Integrity Bypass via resource modification. This only impacts apps that have the embeddedAsarIntegrityValidation and onlyLoadAppFromAsar fuses enabled. Apps without these fuses enabled are not impacted. This issue is fixed in versions 35.7.5, 36.8.1, 37.3.1 and 38.0.0-beta.6.
Frequently asked questions
- What is CVE-2025-55305?
- Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. In versions below 35.7.5, 36.0.0-alpha.1 through 36.8.0, 37.0.0-alpha.1 through 37.3.1 and 38.0.0-alpha.1 through 38.0.0-beta.6, ASAR Integrity Bypass via resource modification. This only impacts apps that have the embeddedAsarIntegrityValidation and onlyLoadAppFromAsar fuses enabled. Apps without these fuses enabled are not impacted. This issue is fixed in versions 35.7.5, 36.8.1, 37.3.1 and 38.0.0-beta.6.
- How severe is CVE-2025-55305?
- CVE-2025-55305 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity high, and availability low.
- Is CVE-2025-55305 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-55305?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-55305 have an EU (EUVD) identifier?
- Yes. CVE-2025-55305 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26873.
- When was CVE-2025-55305 published?
- CVE-2025-55305 was published on 2025-09-04 and last updated on 2026-06-17.
References
- https://github.com/electron/electron/commit/23a02934510fcf951428e14573d9b2d2a3c4f28b
- https://github.com/electron/electron/commit/2e5a0b7220ebf955c6785cc5adb2e2b1cf77dac1
- https://github.com/electron/electron/commit/3f92511cdecc39f46b0e86cce40a0c691e301c9d
- https://github.com/electron/electron/commit/fdf29ce83870109d403f5c23ae529dbd0e8f4fee
- https://github.com/electron/electron/pull/48101
- https://github.com/electron/electron/pull/48102
- https://github.com/electron/electron/pull/48103
- https://github.com/electron/electron/pull/48104
- https://github.com/electron/electron/security/advisories/GHSA-vmqv-hx8q-j7mg
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