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TI-2023-04963 Aliases CVE-2023-5392GHSA-9c9r-3pvj-mx5r

C300 information leak due to an analysis feature which allows extracting more memory over…

Priority LOW 39CWE-1295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

C300 information leak due to an analysis feature which allows extracting more memory over the network than required by the function. Honeywell recommends updating to the most recent version of the product. See Honeywell Security Notification for recommendations on upgrading and versioning.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00476 41st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
HoneywellC300520.2 – 520.2 TCU4; 510.1 – 510.2 HF13; 520.1 – 520.1 TCU4; 511.1 – 511.5 TCU4 HF3—No fix listedCNA
HoneywellC300520.2 – 520.2 TCU4; 511.1 – 511.5 TCU4 HF3; 520.1 – 520.1 TCU4—No fix listedCNA
HoneywellC300520.2 – 520.2 TCU4; 520.1 – 520.1 TCU4; 520.2 TCU4 HFR2 – 511.5 TCU4 HF3—No fix listedCNA
  • C300 VendorHoneywell Affected 520.2 – 520.2 TCU4; 510.1 – 510.2 HF13; 520.1 – 520.1 TCU4; 511.1 – 511.5 TCU4 HF3 Fixed in — No fix listed CNA
  • C300 VendorHoneywell Affected 520.2 – 520.2 TCU4; 511.1 – 511.5 TCU4 HF3; 520.1 – 520.1 TCU4 Fixed in — No fix listed CNA
  • C300 VendorHoneywell Affected 520.2 – 520.2 TCU4; 520.1 – 520.1 TCU4; 520.2 TCU4 HFR2 – 511.5 TCU4 HF3 Fixed in — No fix listed CNA

CPE names CISA-ADP · 1

CPEVersionsRoleVendor
cpe:2.3:h:honeywell:c300:-:*:*:*:*:*:*:*not specified by CISA-ADP—Honeywell
  • cpe:2.3:h:honeywell:c300:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Honeywell

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-5392
  2. 2026-10-03 Alias added: GHSA-9c9r-3pvj-mx5r

References

Other 1

  • TI-2023-03466 Printer web page invalid command execution CVSS 3.1CRITICAL 9.9
  • TI-2021-22482 WIN-PACK PRO 4.8 - 'WPCommandFileService' Unquoted Service Path CVSS 4.0HIGH 8.5
  • TI-2021-22480 WIN-PACK PRO 4.8 - 'GuardTourService' Unquoted Service Path CVSS 4.0HIGH 8.5
  • TI-2007-02844 Buffer overflow in the BaseRunner ActiveX control in the Ademco ATNBaseLoader100 Module… CVSS 2.0HIGH 10.0
  • TI-2023-18324 MAS (a Carrier brand) MASmobile Classic Authorization Bypass CVSS 3.1MEDIUM 6.5
  • TI-2023-28253 XML external entity injection in Honeywell Saia PG5 Controls Suite CVSS 3.1MEDIUM 6.5
See all 132 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences