CVE-2023-34930
CVE-2023-34930 is a high-severity vulnerability in H3c Magic B1st Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (54th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: H3c Magic B1st Firmware
- Published:
- Last modified:
Description
A stack overflow in the EditMacList function of H3C Magic B1STV100R012 allows attackers to cause a Denial of Service (DoS) via a crafted POST request.
Frequently asked questions
- What is CVE-2023-34930?
- A stack overflow in the EditMacList function of H3C Magic B1STV100R012 allows attackers to cause a Denial of Service (DoS) via a crafted POST request.
- How severe is CVE-2023-34930?
- CVE-2023-34930 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2023-34930 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-34930?
- CVE-2023-34930 affects H3c Magic B1st Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-34930?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2023-34930 published?
- CVE-2023-34930 was published on 2023-06-28 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:h3c:magic_b1st_firmware:100r012:*:*:*:*:*:*:*
More vulnerabilities in H3c Magic B1st Firmware
- CVE-2024-42638 — Critical (CVSS 9.8): H3C Magic B1ST v100R012 was discovered to contain a hardcoded password vulnerability in /etc/shadow, which allows…
- CVE-2023-34937 — High (CVSS 7.5): A stack overflow in the UpdateSnat function of H3C Magic B1STV100R012 allows attackers to cause a Denial of Service…
- CVE-2023-34936 — High (CVSS 7.5): A stack overflow in the UpdateMacClone function of H3C Magic B1STV100R012 allows attackers to cause a Denial of Service…
- CVE-2023-34935 — High (CVSS 7.5): A stack overflow in the AddWlanMacList function of H3C Magic B1STV100R012 allows attackers to cause a Denial of Service…
- CVE-2023-34934 — High (CVSS 7.5): A stack overflow in the Edit_BasicSSID_5G function of H3C Magic B1STV100R012 allows attackers to cause a Denial of…
- CVE-2023-34933 — High (CVSS 7.5): A stack overflow in the UpdateWanParams function of H3C Magic B1STV100R012 allows attackers to cause a Denial of…
All CVEs affecting H3c Magic B1st Firmware →
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