CVE-2023-0321

Name: CVE-2023-0321
Creator: NVD / NIST
Published: 2023-01-26T21:18:07.143+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 0.86%

Last modified Jun 17, 2026

CVE-2023-0321 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. Campbell Scientific dataloggers CR6, CR300, CR800, CR1000 and CR3000 may allow an attacker to download configuration files, which may contain sensitive information about the internal network. From factory defaults, the mentioned datalogges have HTTP and PakBus enabled. EPSS estimates a 0.86% chance of exploitation in the next 30 days.

Description

Campbell Scientific dataloggers CR6, CR300, CR800, CR1000 and CR3000 may allow an attacker to download configuration files, which may contain sensitive information about the internal network. From factory defaults, the mentioned datalogges have HTTP and PakBus enabled. The devices, with the default configuration, allow this situation via the PakBus port. The exploitation of this vulnerability may allow an attacker to download, modify, and upload new configuration files.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

0.86%

54.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Campbellsci	Cr6 Firmware	All versions
Campbellsci	Cr300 Firmware	All versions
Campbellsci	Cr800 Firmware	All versions
Campbellsci	Cr1000 Firmware	All versions
Campbellsci	Cr3000 Firmware	All versions

References

https://www.hackplayers.com/2023/01/cve-2023-0321-info-sensible-campbell.htmlExploit, Third Party Advisory
https://www.incibe-cert.es/en/early-warning/ics-advisories/disclosure-sensitive-information-campbell-scientific-productsMitigation, Third Party Advisory
https://www.hackplayers.com/2023/01/cve-2023-0321-info-sensible-campbell.htmlExploit, Third Party Advisory
https://www.incibe-cert.es/en/early-warning/ics-advisories/disclosure-sensitive-information-campbell-scientific-productsMitigation, Third Party Advisory

Timeline

Published: Jan 26, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-0321?

How severe is CVE-2023-0321?

CVE-2023-0321 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.86% probability of exploitation in the next 30 days.

How do I fix CVE-2023-0321?

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-2023-0321?

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

Scan your code now

Source: NVD / NIST