CVE-2024-39698

CVEs › CVE-2024-39698

Description

electron-updater allows for automatic updates for Electron apps. The file `packages/electron-updater/src/windowsExecutableCodeSignatureVerifier.ts` implements the signature validation routine for Electron applications on Windows. Because of the surrounding shell, a first pass by `cmd.exe` expands any environment variable found in command-line above. This creates a situation where `verifySignature()` can be tricked into validating the certificate of a different file than the one that was just downloaded. If the step is successful, the malicious update will be executed even if its signature is invalid. This attack assumes a compromised update manifest (server compromise, Man-in-the-Middle attack if fetched over HTTP, Cross-Site Scripting to point the application to a malicious updater server, etc.). The patch is available starting from 6.3.0-alpha.6.

Overview

State: PUBLISHED
Assigner (CNA): GitHub_M
CVSS severity: HIGH
CVSS score: 7.5 / 10
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Effective score: 7.5 / 10 HIGH source: CNA overview
CWE(s): CWE-154
Reserved: 2024-06-27
Published: 2024-07-09 19:50 UTC
Last updated: 2024-08-02 06:26 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2024/39xxx/CVE-2024-39698.json
Linked Threat: CVE-2024-39698 — Code Signing Bypass on Windows in electron-updater < 6.3.0-alpha.6

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2024-07-09 18:15:10 UTC
NVD last modified: 2026-06-17 07:42:29 UTC
NVD CVSS v3.1: 7.5 / 10 HIGH source: security-advisories@github.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability subscore: 1.6 / 10
Impact subscore: 5.9 / 10
EPSS score: 0.0034 (probability of exploitation in next 30 days)
EPSS percentile: 26.06% vs all CVEs — higher = more likely to be exploited, as of 2026-07-27

NVD-assigned CWE(s): CWE-154, CWE-295 (differs from the CNA list above)

NVD / KEV / EPSS data refreshed 2026-07-27 16:33 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2024-2310
Assigner: GitHub_M
Published: Jul 9, 2024, 5:50:28 PM
Updated: Aug 2, 2024, 4:26:15 AM
EUVD base score (CVSS 3.1): 7.5 / 10
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EUVD-reported EPSS: 0.4300
Vendors: electron-userland
Products: electron-builder (< 6.3.0-alpha.6)
Aliases: GHSA-9jxc-qjr9-vjxq

ENISA description: electron-updater allows for automatic updates for Electron apps. The file `packages/electron-updater/src/windowsExecutableCodeSignatureVerifier.ts` implements the signature validation routine for Electron applications on Windows. Because of the surrounding shell, a first pass by `cmd.exe` expands any environment variable found in command-line above. This creates a situation where `verifySignature()` can be tricked into validating the certificate of a different file than the one that was just downloaded. If the step is successful, the malicious update will be executed even if its signature is invalid. This attack assumes a compromised update manifest (server compromise, Man-in-the-Middle attack if fetched over HTTP, Cross-Site Scripting to point the application to a malicious updater server, etc.). The patch is available starting from 6.3.0-alpha.6.

EUVD references (4)

Affected products (1)

Vendor	Product	Versions	Platforms
electron-userland	electron-builder	`< 6.3.0-alpha.6` (affected)	—

Affected products — CPE 2.3 (7) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:a:electron:electron-builder:*:*:*:*:*:node.js:*:*
cpe:2.3:a:electron:electron-builder:6.3.0:alpha0:*:*:*:node.js:*:*
cpe:2.3:a:electron:electron-builder:6.3.0:alpha1:*:*:*:node.js:*:*
cpe:2.3:a:electron:electron-builder:6.3.0:alpha2:*:*:*:node.js:*:*
cpe:2.3:a:electron:electron-builder:6.3.0:alpha3:*:*:*:node.js:*:*
cpe:2.3:a:electron:electron-builder:6.3.0:alpha4:*:*:*:node.js:*:*
cpe:2.3:a:electron:electron-builder:6.3.0:alpha5:*:*:*:node.js:*:*

Vendor references (4)

References embedded in the original CVE record by the assigning CNA.

https://github.com/electron-userland/electron-builder/security/advisories/GHSA-9jxc-qjr9-vjxq x_refsource_CONFIRM
https://github.com/electron-userland/electron-builder/pull/8295 x_refsource_MISC
https://github.com/electron-userland/electron-builder/commit/ac2e6a25aa491c1ef5167a552c19fc2085cd427f x_refsource_MISC
https://github.com/electron-userland/electron-builder/blob/140e2f0eb0df79c2a46e35024e96d0563355fc89/packages/electron-updater/src/windowsExecutableCodeSignatureVerifier.ts#L35-L41 x_refsource_MISC

MITRE references (4) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

https://github.com/electron-userland/electron-builder/blob/140e2f0eb0df79c2a46e35024e96d0563355fc89/packages/electron-updater/src/windowsExecutableCodeSignatureVerifier.ts#L35-L41 x_refsource_MISC
https://github.com/electron-userland/electron-builder/commit/ac2e6a25aa491c1ef5167a552c19fc2085cd427f x_refsource_MISC
https://github.com/electron-userland/electron-builder/pull/8295 x_refsource_MISC
https://github.com/electron-userland/electron-builder/security/advisories/GHSA-9jxc-qjr9-vjxq x_refsource_CONFIRM

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (8)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://github.com/electron-userland/electron-builder/blob/140e2f0eb0df79c2a46e35024e96d0563355fc89/packages/electron-updater/src/windowsExecutableCodeSignatureVerifier.ts#L35-L41 security-advisories@github.com Product
https://github.com/electron-userland/electron-builder/blob/140e2f0eb0df79c2a46e35024e96d0563355fc89/packages/electron-updater/src/windowsExecutableCodeSignatureVerifier.ts#L35-L41 af854a3a-2127-422b-91ae-364da2661108 Product
https://github.com/electron-userland/electron-builder/commit/ac2e6a25aa491c1ef5167a552c19fc2085cd427f security-advisories@github.com Patch
https://github.com/electron-userland/electron-builder/commit/ac2e6a25aa491c1ef5167a552c19fc2085cd427f af854a3a-2127-422b-91ae-364da2661108 Patch
https://github.com/electron-userland/electron-builder/pull/8295 security-advisories@github.com Issue TrackingPatch
https://github.com/electron-userland/electron-builder/pull/8295 af854a3a-2127-422b-91ae-364da2661108 Issue TrackingPatch
https://github.com/electron-userland/electron-builder/security/advisories/GHSA-9jxc-qjr9-vjxq security-advisories@github.com ExploitVendor Advisory
https://github.com/electron-userland/electron-builder/security/advisories/GHSA-9jxc-qjr9-vjxq af854a3a-2127-422b-91ae-364da2661108 ExploitVendor Advisory

Indicators (2)

IOCs linked to the auto-promoted Threat row.

Type	Value	VirusTotal	Attached
domain	`cmd.exe`	no local data	2026-05-18 21:19 UTC
domain	`windowsexecutablecodesignatureverifier.ts`	no local data	2026-05-18 21:19 UTC

Remediations (26)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

CVE: Common Vulnerabilities and Exposures

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AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2024-39698.json.

{
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      {
        "affected": [
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              "cpe:2.3:a:electron:electron:*:*:*:*:*:*:*:*"
            ],
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            "product": "electron",
            "vendor": "electron",
            "versions": [
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                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
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        ],
        "metrics": [
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                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-10T14:40:10.938790Z",
                "version": "2.0.3"
              },
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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      {
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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
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        },
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        }
      ],
      "source": {
        "advisory": "GHSA-9jxc-qjr9-vjxq",
        "discovery": "UNKNOWN"
      },
      "title": "Code Signing Bypass on Windows in electron-updater < 6.3.0-alpha.6"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-39698",
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    "dateReserved": "2024-06-27T18:44:13.037Z",
    "dateUpdated": "2024-08-02T04:26:15.985Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1"
}