What is CVE-2023-4664?

CVE-2023-4664 is a high-severity vulnerability in Adobe Connect, classified under Incorrect Default Permissions. CVSS score: 8.8/10. Published 2023-09-15.

How severe is CVE-2023-4664?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Adobe Connect

CVE-2023-4664

Incorrect Default Permissions vulnerability in Saphira Saphira Connect allows Privilege Escalation. This issue affects Saphira Connect: before 9.

Published 2023-09-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (59.2th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000

Affected products

Adobe Connect
Saphira Connect — versions 0

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

www.usom.gov.tr/bildirim/tr-23-0535 (Third Party Advisory, government-resource, broken-link)
siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-23-0535 (government-resource)

Frequently asked questions

What is CVE-2023-4664?: CVE-2023-4664 is a high-severity vulnerability in Adobe Connect, classified under Incorrect Default Permissions. CVSS score: 8.8/10. Published 2023-09-15.
How severe is CVE-2023-4664?: High severity. CVSS v3 base score is 8.8 out of 10.