Security readout for executives and security teams
Plain-English summary
SyncTrayzor 1.1.29 exposes Chromium remote debugging in its embedded browser component. The CVE states this can let a local attacker control the application. This is mainly a workstation exposure issue, not a confirmed remote internet-facing vulnerability from the provided evidence.
Executive priority
Treat this as a targeted endpoint hygiene issue. Prioritize identifying SyncTrayzor 1.1.29 on shared or sensitive workstations, then follow vendor release guidance. It does not currently have evidence of active exploitation in the supplied sources.
Technical view
The issue is tied to CEF remote debugging being enabled in SyncTrayzor 1.1.29. The published description says local attackers can control the application. The source bundle provides no CVSS, CWE, CPE, confirmed fixed version, or technical remediation detail.
Likely exposure
Exposure is likely limited to systems running SyncTrayzor 1.1.29 where an untrusted local user can access the same host or session. Shared workstations and multi-user endpoints are higher concern than single-user locked-down devices.
Exploitation context
The provided sources do not show active exploitation, and the CVE is not listed as KEV. Exploitation requires local attacker access according to the CVE description. No public exploit details are included in the supplied bundle.
Researcher notes
Evidence is sparse. The CVE record names SyncTrayzor 1.1.29 and local control via CEF remote debugging, but lacks CVSS, CWE, CPE, affected vendor metadata, and confirmed fix details. Avoid assuming broader Syncthing impact without vendor evidence.
Mitigation direction
- Inventory endpoints for SyncTrayzor 1.1.29 installations.
- Review SyncTrayzor issue #666 and release notes for vendor remediation guidance.
- Upgrade only to a vendor-supported version that addresses this issue.
- Remove or disable SyncTrayzor where business need is low.
- Limit untrusted local user access on systems running SyncTrayzor.
Validation and detection
- Confirm whether SyncTrayzor 1.1.29 is installed on managed endpoints.
- Check whether affected systems are shared or allow untrusted local users.
- Review vendor release notes for a stated fix or workaround.
- Track remediation status separately because CVSS and CPE data are absent.
- Reassess risk if vendor sources publish exploit or patch details.
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.
CVE-2021-46899 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/canton7/SyncTrayzor/issues/666CVE reference
- https://github.com/canton7/SyncTrayzor/releasesCVE reference
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.