CVE-2023-26455

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.19% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 8.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2023-11-02 13:01Z2 YR AGO

Last updated

2024-08-02 11:53Z2 YR AGO

Reserved

2023-02-22

Assigning CNA

OX

Record state

PUBLISHED

Severity

Medium (CVSS 5.6)

CNA CVSS vector

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

Weaknesses

• CWE-287Improper AuthenticationClass

Data version

5.1

Document digest

4f778e8b7d2f642777c942d453f1023cbb741f2aadbbb9c69c48d24504196c55

• software.open-xchange.comhttps://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6243_7.10.6_2023-08-01.pdfrelease-notes
• documentation.open-xchange.comhttps://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0004.jsonvendor-advisory