Cyber Resilience

CVE-2023-33640

High

Published: 31 May 2023

Published
31 May 2023
Modified
10 January 2025
KEV Added
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Patch
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CVSS Score v3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0045 64.2th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-33640 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in H3C Magic R300-2100M Firmware. Its CVSS base score is 7.2 (High).

Operationally, ranked in the top 35.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

H3C Magic R300 version R300-2100MV100R004 was discovered to contain a stack overflow via the SetAPWifiorLedInfoById interface at /goform/aspForm.

CWE(s)
CWE-787

Related Threats

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

Affected Assets

h3c
magic r300-2100m firmware
r300-2100mv100r004

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.

SI-16 Memory Protection
addresses: CWE-787

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

References