Is CVE-2022-34603 actively exploited?

No active exploitation of CVE-2022-34603 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-34603 be exploited remotely?

Yes. CVE-2022-34603 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-34603?

CVE-2022-34603 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2022-34603

CRITICAL

CVE-2022-34603

CWE-787Published: July 20, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

H3C Magic R200 R200V200R004L02 was discovered to contain a stack overflow via the DelDNSHnList interface at /goform/aspForm.

NVD Source

Risk Analysis

A stack overflow vulnerability exists in the H3C Magic R200 within the DelDNSHnList interface. The critical 9.8 CVSS score indicates a high risk of unauthenticated remote code execution. It is not currently listed in the CISA KEV.

No public exploit is known, and it is not in the CISA KEV. The vulnerability is remotely exploitable.

Recommended Action

Update the H3C Magic R200 firmware to the latest version. Restrict network access to the device.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2022-34603 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.