PatchTheCVECVE-2022-48483: 3CX before 18 Hotfix 1 build 18.0.3.461 on Windows allows unauthenticated remote attackers to read %WINDIR%\sy
CVE-2022-48483 is a high-severity flaw (CVSS 7.5) affecting 3cx. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
3CX before 18 Hotfix 1 build 18.0.3.461 on Windows allows unauthenticated remote attackers to read %WINDIR%\system32 files via /Electron/download directory traversal in conjunction with a path component that has a drive letter and uses backslash characters. NOTE: this issue exists because of an incomplete fix for CVE-2022-28005.
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 2.0% (top 19%) |
| CISA exploited list | No |
| Weakness | CWE-22 |
| Published | 2023-05-02 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2022-48483?
3cx: upgrade to 18.0.3.461. Exact commands for each OS are on this page.
Is CVE-2022-48483 being exploited?
CVE-2022-48483 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2022-48483 affect?
CVE-2022-48483 affects 3cx. Severity is high (CVSS 7.5). 3CX before 18 Hotfix 1 build 18.0.3.461 on Windows allows unauthenticated remote attackers to read %WINDIR%\system32 files via /Electron/download directory traversal in conjunction with a path component that has a drive letter and uses back
How urgent is CVE-2022-48483?
Priority 51/100. High severity; Remotely exploitable, no login, no user action
Software pages
Windows vulnerabilities · Electron vulnerabilities
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