How severe is CVE-2023-4664?

CVE-2023-4664 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-4664 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4664?

CVE-2023-4664 affects Adobe Connect. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4664?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-4664 published?

CVE-2023-4664 was published on 2023-09-15 and last updated on 2026-06-17.

CVE-2023-4664

CVE-2023-4664 is a high-severity vulnerability in Adobe Connect with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-276.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Adobe Connect
Published: 2023-09-15
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2023-4664?: Incorrect Default Permissions vulnerability in Saphira Saphira Connect allows Privilege Escalation. This issue affects Saphira Connect: before 9.
How severe is CVE-2023-4664?: CVE-2023-4664 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-4664 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4664?: CVE-2023-4664 affects Adobe Connect. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4664?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-4664 published?: CVE-2023-4664 was published on 2023-09-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:adobe:connect:*:*:*:*:*:*:*:*

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CVE-2019-19896 — Critical (CVSS 9.9): In IXP EasyInstall 6.2.13723, there is Remote Code Execution via weak permissions on the Engine Service share. The…
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