CVE-2023-33629
Memory Safety in H3C Magic R300-2100M Firmware r300-2100mv100r004
Raw vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-33629 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, exploitation aligns with the MITRE ATT&CK technique Security Account Manager (T1003.002); ranked in the top 9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
H3C Magic R300 firmware version R300-2100MV100R004 contains a stack-based buffer overflow vulnerability reachable through the DeltriggerList interface at the /goform/aspForm endpoint. The flaw is tracked as CVE-2023-33629, carries a CVSS 3.1 score of 7.2, and is classified under CWE-787 as an out-of-bounds write.
An attacker with administrative credentials can send a crafted HTTP request to the affected endpoint and trigger the overflow. Successful exploitation grants the ability to execute arbitrary code or crash the device, resulting in full compromise of confidentiality, integrity, and availability on the router.
Public technical notes at the referenced HackMD pages describe the vulnerability discovery but do not include vendor patch information or mitigation steps. The current EPSS score of 0.8770, with a recorded peak of 0.8814, indicates sustained exploitation interest following disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-37785
Vulnerability Data
H3C Magic R300 version R300-2100MV100R004 was discovered to contain a stack overflow via the DeltriggerList interface at /goform/aspForm.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
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Affected Assets
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.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Vulnerability scanning and recording can discover out-of-bounds write flaws so they can be remediated.
Patching or replacing vulnerable software directly eliminates known instances of this coding weakness.
Secure-development practices (static analysis, bounds checking, code review) are the primary means of preventing out-of-bounds writes.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.