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CVE-2023-0321

28
FAUCET Score

CVE-2023-0321 is a critical vulnerability affecting Campbell Scientific CR6, CR300, CR800, CR1000, and CR3000 dataloggers. It allows an unauthenticated attacker to download, modify, and upload configuration files containing sensitive network information via the PakBus port, due to default HTTP and PakBus enablement. With a CVSS score of 9.1, this vulnerability presents a high risk of complete compromise of the affected devices and potential network access. There is currently no public exploit code available, and it is not known to be actively exploited, with minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:campbellsci:cr6_firmware:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:campbellsci:cr300_firmware:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:campbellsci:cr800_firmware:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:campbellsci:cr1000_firmware:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:campbellsci:cr3000_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.86%
Probability of exploitation in next 30 days
EPSS Percentile
54.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0086 is in the 39th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

hackplayers.com / 2023/01/cve-2023-0321-info-sensible-campbell.html
ExploitThird Party Advisory
incibe-cert.es / en/early-warning/ics-advisories/disclosure-sensitive-information-campbell-scientific-products
MitigationThird Party Advisory