CVE-2023-27100

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total 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

9.84% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 95.1% of scored records. A rank, not a probability.

NVD base score

9.8 (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: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

2023-03-22 00:00Z3 YR AGO

Last updated

2025-02-25 21:10Z1 YR AGO

Reserved

2023-02-27

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-307Improper Restriction of Excessive Authentication AttemptsBase

Data version

5.1

Document digest

e9dfd2486a470b8b31ecc340613c7b24a63124aa24eefcbd3d173e0057529faf

• docs.netgate.comhttps://docs.netgate.com/downloads/pfSense-SA-23_05.sshguard.asc
• redmine.pfsense.orghttps://redmine.pfsense.org/issues/13574
• packetstormsecurity.comhttp://packetstormsecurity.com/files/171791/pfsenseCE-2.6.0-Protection-Bypass.html
• packetstorm.newshttps://packetstorm.news/files/id/171791exploit