No exploitation reportedFix available

CVE-2022-48483

Q: Is CVE-2022-48483 actively exploited?

Active exploitation of CVE-2022-48483 has not been confirmed. Its EPSS score was 1.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-48483?

CVE-2022-48483 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

No exploitation reported by the sources we read.

Published2023-05-02
Fixed in18.0.3.461
WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2023-05-0205:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-48483?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-48483?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

3cx

Branch	Affected	Fixed in	Source
18.0	< 18.0.3.461	18.0.3.461	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update 3cx to 18.0.3.461

Advisories and patches

www.3cx.comRelease Notes

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2025-01-30
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.17.52025-01-30
NVDCVSS 3.17.5read 2026-10-23
CISA-ADPweakness (CWE)CWE-222025-01-30
NVDweakness (CWE)CWE-22read 2026-10-23
FIRST EPSSEPSS score1.7 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published: 2023-05-02
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-48483?

Is CVE-2022-48483 actively exploited?

Active exploitation of CVE-2022-48483 has not been confirmed. Its EPSS score was 1.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-48483?

CVE-2022-48483 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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