CVE-2023-39962

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.02% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 61.0% of scored records. A rank, not a probability.

NVD base score

7.7 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-08-10 17:23Z3 YR AGO

Last updated

2024-10-03 19:54Z1 YR AGO

Reserved

2023-08-07

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 7.7)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Weaknesses

• CWE-284Improper Access ControlPillar

Data version

5.1

Document digest

57693b2b1e055c5cad11f74a1edd4305d0decc6e32d70feedd3886c700abcf80

• github.comhttps://github.com/nextcloud/security-advisories/security/advisories/GHSA-xwxx-2752-w3xmx_refsource_CONFIRM
• github.comhttps://github.com/nextcloud/server/pull/39323x_refsource_MISC
• hackerone.comhttps://hackerone.com/reports/2047168x_refsource_MISC