CVE-2023-24474: Server deserialization missing boundary checks - heap overflow in communication between server and controller
Noroxi assessment
Priority: Monitor (action score 30/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.66% (FIRST EPSS); higher than 51.5% of all records.
- 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.
- According to CISA the attack is automatable: targets can be found by mass scanning.
- According to the record, no fixed version is available yet.
Low priority for now. Update when a fix is released; follow the vendor's advisory.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
Experion server may experience a DoS due to a heap overflow which could occur when handling a specially crafted message
- Published
- Jul 13, 2023
- Updated
- Jun 17, 2026
- EPSS
- 0.6% · 51th percentile
- CWE
- CWE-122
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- No fixed version yet
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| 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 511.5tcu3 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 511.5tcu3 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
Published before and after this one in the same product
- ← EarlierCVE-2023-22435Jul 13, 2023 · Server bad parsing implementation - stack overflow in server::get_db_path_for_driver30Monitor
- ← EarlierCVE-2023-23585Jul 13, 2023 · Server DoS due to heap overflow30Monitor
- Later →CVE-2023-25078Jul 13, 2023 · DoS due to heap overflow30Monitor
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.
No history yet (it accumulates with the daily EPSS job).
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
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-122 · Heap-based Buffer OverflowCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Attack patterns (CAPEC)
ATT&CK techniques
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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.