CVE-2023-28120

Name: CVE-2023-28120
Creator: NVD / NIST
Published: 2025-01-09T01:15:07.637+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.91%

Last modified Jun 17, 2026

CVE-2023-28120 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. There is a vulnerability in ActiveSupport if the new bytesplice method is called on a SafeBuffer with untrusted user input.. EPSS estimates a 0.91% chance of exploitation in the next 30 days.

Description

There is a vulnerability in ActiveSupport if the new bytesplice method is called on a SafeBuffer with untrusted user input.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.91%

55.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

References

Timeline

Published: Jan 9, 2025
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2023-28120?

There is a vulnerability in ActiveSupport if the new bytesplice method is called on a SafeBuffer with untrusted user input.

How severe is CVE-2023-28120?

CVE-2023-28120 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.

How do I fix CVE-2023-28120?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-28120?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST