Secuno
ENNL
Book demo

CVE-2023-27152

Opnsense authentication bypass

9.8 CRITICALEPSS 0.89%
  1. Published23 Oct 2023

Description

DECISO OPNsense 23.1 does not impose rate limits for authentication, allowing attackers to perform a brute-force attack to bypass authentication.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Opnsense23.1

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Frequently asked

Is CVE-2023-27152 being actively exploited?

CVE-2023-27152 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.89%.

How severe is CVE-2023-27152?

CVE-2023-27152 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.89% probability of exploitation.

Which products are affected by CVE-2023-27152?

Affected products include Opnsense.

How do I fix CVE-2023-27152?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-27152 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.