CVE-2023-26756

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

1.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 64.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

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

2023-04-14 00:00Z3 YR AGO

Last updated

2024-08-02 11:53Z2 YR AGO

Reserved

2023-02-27

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-307Improper Restriction of Excessive Authentication AttemptsBase

Data version

5.1

Document digest

8123a6217e40f19d0a2bba041da08b48ff5d2159a3096507c96707c6401e348c

• googleinformationsworld.blogspot.comhttps://googleinformationsworld.blogspot.com/2023/04/revive-adserver-541-vulnerable-to-brute.html
• www.esecforte.comhttps://www.esecforte.com/login-page-brute-force-attack/
• seclists.org20240424 Response to CVE-2023-26756 - Revive Adserverhttp://seclists.org/fulldisclosure/2024/Apr/27mailing-list
• www.revive-adserver.comhttps://www.revive-adserver.com/security/response-to-cve-2023-26756/