Cyber Resilience

CVE-2023-24480

Critical

Published: 13 July 2023

Published
13 July 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0005 15.9th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-24480 is a critical-severity Improper Encoding or Escaping of Output (CWE-116) vulnerability in Honeywell C300 Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, ranked at the 15.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Controller DoS due to stack overflow when decoding a message from the server.  See Honeywell Security Notification for recommendations on upgrading and versioning.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

honeywell
c300 firmware
501.1 — 501.6hf8 · 510.1 — 510.2hf12 · 511.1 — 511.5tcu3

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-116

Validating that output matches expected content directly mitigates failures to properly encode or escape data for its destination context.

addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

References