Server Data type confusion - info leak
Server information leak of configuration data when an error is generated in response to a specially crafted message. See Honeywell Security Notification for recommendations on upgrading and versioning.
- Published
- Jul 13, 2023
- Updated
- Jun 17, 2026
- EPSS
- 0.6% · 45th percentile
- CWE
- CWE-394
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Report tools
Action score
30
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.6%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 7.5
- CNA · Honeywell
- 7.5
- agree
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| honeywell | experion server | cpe:2.3:a:honeywell:experion_server |
| honeywell | experion station | cpe:2.3:a:honeywell:experion_station |
| honeywell | engineering station | cpe:2.3:a:honeywell:engineering_station |
| honeywell | direct station | cpe:2.3:a:honeywell:direct_station |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- honeywell direct station520.1 and later · up to 520.1tcu4 inclusive
- honeywell direct station510.1 and later · up to 511.tcu3 inclusive
- honeywell direct station520.2 and later · up to 520.2tcu2 inclusive
- honeywell engineering station520.2 and later · up to 520.2tcu2 inclusive
- honeywell engineering station520.1 and later · up to 520.1tcu4 inclusive
- honeywell engineering station510.1 and later · up to 511.tcu3 inclusive
- honeywell experion server501.1 and later · up to 501.6hf8 inclusive
- honeywell experion server510.1 and later · up to 510.2hf12 inclusive
- honeywell experion server511.1 and later · up to 511.5tcu3 inclusive
- honeywell experion server520.1 and later · up to 520.1tcu4 inclusive
- honeywell experion server520.2 and later · up to 520.2tcu2 inclusive
- honeywell experion station520.2 and later · up to 520.2tcu2 inclusive
- honeywell experion station520.1 and later · up to 520.1tcu4 inclusive
- honeywell experion station511.1 and later · up to 511.5tcu3 inclusive
- honeywell experion station510.1 and later · up to 510.2hf12 inclusive
- honeywell experion station501.1 and later · up to 501.6hf8 inclusive
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Honeywell). Independent of NVD's CPE analysis and usually ahead of it.
Honeywell Direct Station
- 510.5 and later · up to and including 511.5TCU3affected · semver
- 520.1 and later · up to and including 520.1TCU4affected · semver
- 520.2 and later · up to and including 520.2TCU2affected · semver
Honeywell Engineering Station
- 510.1 and later · up to and including 511.5TCU3affected · semver
- 520.1 and later · up to and including 520.1TCU4affected · semver
- 520.2 and later · up to and including 520.2TCU2affected · semver
Honeywell Experion Server
- 501.1 and later · up to and including 501.6HF8affected · semver
- 510.1 and later · up to and including 510.2HF12affected · semver
- 511.1 and later · up to and including 511.5TCU3affected · semver
- 520.1 and later · up to and including 520.1TCU4affected · semver
- 520.2 and later · up to and including 520.2TCU2affected · semver
Honeywell Experion Station
- 501.1 and later · up to and including 501.6HF8affected · semver
- 510.1 and later · up to and including 510.2HF12affected · semver
- 511.1 and later · up to and including 511.5TCU3affected · semver
- 520.1 and later · up to and including 520.1TCU4affected · semver
- 520.2 and later · up to and including 520.2TCU2affected · semver
Same product
honeywell: all recordsOther highest-scoring records for the same primary product.
- CVE-2023-5404Server receiving a malformed message can cause a pointer to be overwritten which can result in a remote code execution or failure.32Monitor
- CVE-2023-5403Server hostname translation to IP address manipulation which could lead to an attacker performing remote code execution or causing a failure32Monitor
- CVE-2023-5401Server receiving a malformed message based on a using the specified key values can cause a stack overflow vulnerability which could lead to 32Monitor
- CVE-2023-5400Server receiving a malformed message based on a using the specified key values can cause a heap overflow vulnerability which could lead to a32Monitor
- CVE-2023-5397Server receiving a malformed message to create a new connection could lead to an attacker performing remote code execution or causing a fail32Monitor
- CVE-2023-5395Server receiving a malformed message that uses the hostname in an internal table may cause a stack overflow resulting in possible remote cod32Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-394 · Unexpected Status Code or Return ValueCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.