Cyber Resilience

CVE-2023-4929

Medium

Published: 03 October 2023

Published
03 October 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
EPSS Score 0.0004 13.2th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-4929 is a medium-severity Improper Validation of Integrity Check Value (CWE-354) vulnerability in Moxa Nport 5410 Firmware. Its CVSS base score is 6.5 (Medium).

Operationally, ranked at the 13.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

All firmware versions of the NPort 5000 Series are affected by an improper validation of integrity check vulnerability. This vulnerability results from insufficient checks on firmware updates or upgrades, potentially allowing malicious users to manipulate the firmware and gain control…

more

of devices.

CWE(s)

Related Threats

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

Affected Assets

moxa
nport 5150ai-m12-ct-t firmware
≤ 1.5
moxa
nport 5250ai-m12-ct-t firmware
≤ 1.5
moxa
nport 5150ai-m12-t firmware
≤ 1.5
moxa
nport 5250ai-m12-t firmware
≤ 1.5
moxa
nport 5450ai-m12-ct-t firmware
≤ 1.5
moxa
nport 5150ai-m12 firmware
≤ 1.5
moxa
nport 5250ai-m12 firmware
≤ 1.5
moxa
nport 5150ai-m12-ct firmware
≤ 1.5
moxa
nport 5250ai-m12-ct firmware
≤ 1.5
moxa
nport 5450ai-m12-t firmware
≤ 1.5
+98 more product configuration(s) — see NVD for full list

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-354

Proper validation of integrity check values is required for reliable tamper detection, directly reducing undetected modification risks.

addresses: CWE-354

Requires validation of integrity check values on every resolution response, directly mitigating tampered or corrupted DNS data.

addresses: CWE-354

Control mandates proper validation of integrity values (checksums) on prepared data, making flawed validation of those checks ineffective for attackers.

addresses: CWE-354

Requires use of proper integrity verification tools, reducing the chance an incorrect check value is accepted.

addresses: CWE-354

Requires proper validation of integrity mechanisms, directly mitigating flawed check-value handling.

References