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CVE-2023-5405

19
FAUCET Score

CVE-2023-5405 describes a server information leak vulnerability affecting the CDA Server process, triggered by specially crafted messages that generate an error. This medium-severity vulnerability (CVSS 5.9) has a network attack vector and high confidentiality impact, but requires high attack complexity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
HoneywellExperion Server
>= 511.1, <= 511.5 TCU4 HF3, >= 520.1, <= 520.1 TCU4, >= 520.2, <= 520.2 TCU4CNA affecteddefault unaffected
HoneywellExperion Server
>= 510.1, <= 510.2 HF13, >= 511.1, <= 511.5 TCU4 HF3, >= 520.1, <= 520.1 TCU4, >= 520.2, <= 520.2 TCU4CNA affecteddefault unaffected
HoneywellExperion Server
>= 520.2 TCU4 HFR2, <= 511.5 TCU4 HF3, >= 520.1, <= 520.1 TCU4, >= 520.2, <= 520.2 TCU4CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
33.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 4th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

process.honeywell.com