CVE-2023-45284

Name: CVE-2023-45284
Creator: NVD / NIST
Published: 2023-11-09T17:15:08.813+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.90%

Last modified Jun 17, 2026

CVE-2023-45284 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. On Windows, The IsLocal function does not correctly detect reserved device names in some cases. Reserved names followed by spaces, such as "COM1 ", and reserved names "COM" and "LPT" followed by superscript 1, 2, or 3, are incorrectly reported as local. EPSS estimates a 0.90% chance of exploitation in the next 30 days.

Description

On Windows, The IsLocal function does not correctly detect reserved device names in some cases. Reserved names followed by spaces, such as "COM1 ", and reserved names "COM" and "LPT" followed by superscript 1, 2, or 3, are incorrectly reported as local. With fix, IsLocal now correctly reports these names as non-local.

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

0.90%

55.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Golang	Go	< 1.20.11
Golang	Go	>= 1.21.0-0, < 1.21.4

References

https://go.dev/cl/540277Issue Tracking, Vendor Advisory
https://go.dev/issue/63713Issue Tracking, Vendor Advisory
https://groups.google.com/g/golang-announce/c/4tU8LZfBFkYIssue Tracking, Mailing List, Vendor Advisory
https://pkg.go.dev/vuln/GO-2023-2186Issue Tracking, Vendor Advisory
https://go.dev/cl/540277Issue Tracking, Vendor Advisory
https://go.dev/issue/63713Issue Tracking, Vendor Advisory
https://groups.google.com/g/golang-announce/c/4tU8LZfBFkYIssue Tracking, Mailing List, Vendor Advisory
https://pkg.go.dev/vuln/GO-2023-2186Issue Tracking, Vendor Advisory

Timeline

Published: Nov 9, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-45284?

How severe is CVE-2023-45284?

CVE-2023-45284 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.

How do I fix CVE-2023-45284?

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-2023-45284?

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

Scan your code now

Source: NVD / NIST