Security readout for executives and security teams
Plain-English summary
This flaw affects Electron desktop applications using AutoUpdater. If an attacker already controls the victim organization’s update server or storage, they could distribute an update that passes signing checks but contains malicious code in nested bundle components.
Executive priority
Prioritize remediation for Electron apps with automatic updates, especially business-critical internal or customer-facing desktop software. The vulnerability is not broadly exploitable without update infrastructure control, but successful abuse could compromise application users through a trusted update path.
Technical view
Electron failed to validate certain nested bundle components during AutoUpdater code-signing validation. Affected Electron ranges are before 15.5.5, 16.2.6, 17.2.0, and 18.0.0-beta.6. The issue is CWE-20 with CVSS 6.6, reflecting high privilege and high attack complexity but high impact.
Likely exposure
Exposure is limited to applications built on affected Electron versions that use the affected auto-update path. The practical risk is highest where update infrastructure access controls, storage integrity, or release processes are weak.
Exploitation context
The provided sources do not show known active exploitation, and the CVE is not marked KEV. Exploitation requires significant privileges over the victim application’s update server or update storage, so compromise of update infrastructure is the main enabling condition.
Researcher notes
The key research focus is version exposure and update pipeline control. Sources identify no workaround and no active exploitation. Validate affected ranges precisely and treat update infrastructure compromise as the prerequisite condition, not ordinary remote unauthenticated exploitation.
Mitigation direction
- Upgrade Electron to 15.5.5, 16.2.6, 17.2.0, 18.0.0-beta.6, or later fixed releases.
- No named workaround exists; follow Electron advisory guidance if immediate upgrade is blocked.
- Restrict, audit, and monitor access to update servers and storage.
- Review release signing and update publication processes for unauthorized changes.
Validation and detection
- Inventory Electron applications and confirm whether AutoUpdater is used.
- Check manifests, lockfiles, and build records for affected Electron version ranges.
- Verify deployed clients are receiving builds based on fixed Electron versions.
- Review update server and storage logs for unauthorized access or package changes.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-20: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-29257 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H0.75.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.6MediumVector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/electron/electron/security/advisories/GHSA-77xc-hjv8-ww97CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.