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Fencer Vulns
medium 6.1

CVE-2025-55305 json

Electron is vulnerable to Code Injection via resource modification

published 2025-09-03 14 mo ago modified 2026-10-19 20 d ago also EUVD-2025-26873 , GHSA-vmqv-hx8q-j7mg

cvss
6.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits
0
none known

Summary

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.

Patch / fix

  • npm electron 35.7.5, 36.8.1, 37.3.1, 38.0.0-beta.6
  • atom electron 35.7.5, 36.8.1, 37.3.1, 38.0.0-beta.6
  • electronjs electron 35.7.5, 36.8.1, 37.3.1, 38.0.0-beta.6

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-55305 updated cvss 6.1

electron: ASAR Integrity Bypass via resource modification

  • Red Hat OpenShift Dev Spaces devspaces/code-rhel9, devspaces-tech-preview/idea-rhel9
    affected: workaround, no fix available “No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
14 mo ago

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L
GitHub 3.1 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L

Affected packages

ecosystem package affected fixed in
npm electron
<35.7.5
>=36.0.0-alpha.1, <36.8.1
>=37.0.0-alpha.1, <37.3.1
>=38.0.0-alpha.1, <38.0.0-beta.6
35.7.5
36.8.1
37.3.1
38.0.0-beta.6

Affected products

  • electron electron

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code
  • CWE-829 Inclusion of Functionality from Untrusted Control Sphere

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.