CVE-2023-4612

Q: How do I fix CVE-2023-4612?

Upgrade central authentication service to 7.0.0 or later.

Q: Is CVE-2023-4612 being actively exploited?

Not that we know of. CVE-2023-4612 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.94% is the estimated probability that it will be exploited in the next 30 days. That is higher than 58% of all scored CVEs.

Q: How severe is CVE-2023-4612?

CVE-2023-4612 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2023-4612 affect?

Published advisories record a fix for central authentication service (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

CRITICAL

9.8

CVSS v3

NVD

Description

Improper Authentication vulnerability in Apereo CAS in jakarta.servlet.http.HttpServletRequest.getRemoteAddr method allows Multi-Factor Authentication bypass.This issue affects CAS: through 7.0.0-RC7. It is unknown whether in new versions the issue will be fixed. For the date of publication there is no patch, and the vendor does not treat it as a vulnerability.

CWE-302 CWE-287Improper Authentication

How to fix

Remediation Available

central authentication serviceNVD

Affected:< 7.0.0Fixed in:7.0.0CVE-2023-4612derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.94%probability of exploitation in 30 days

58thpercentile

Moderate risk: more likely to be exploited than 58% of all known CVEs.

References

Third-Party Advisory2

Related Vulnerabilities

Other CWE-302 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-43441	Critical	9.8	70%	-	Fix
CVE-2024-4024	High	7.3	15%	-	Fix
CVE-2016-9482	Critical	9.8	4.7%	-	-
CVE-2025-29813	Critical	10.0	1.7%	-	-
CVE-2020-15074	High	7.5	1.0%	-	Fix
CVE-2024-49056	High	7.3	1.0%	-	-

Common questions

How do I fix CVE-2023-4612?

Upgrade central authentication service to 7.0.0 or later.

Is CVE-2023-4612 being actively exploited?

Not that we know of. CVE-2023-4612 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.94% is the estimated probability that it will be exploited in the next 30 days. That is higher than 58% of all scored CVEs.

How severe is CVE-2023-4612?

CVE-2023-4612 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2023-4612 affect?

Published advisories record a fix for central authentication service (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2023-4612

Markdown

[![CVE-2023-4612](https://tridentstack.com/cve/badge/CVE-2023-4612.svg)](https://tridentstack.com/cve/CVE-2023-4612)

HTML

<a href="https://tridentstack.com/cve/CVE-2023-4612"><img src="https://tridentstack.com/cve/badge/CVE-2023-4612.svg" alt="CVE-2023-4612"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

See how it works Start freeThis CVE lookup is free and always will be.

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-02-26.