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TI-2023-17444 Aliases CVE-2023-34937GHSA-qp25-xgfj-8r2q

A stack overflow in the UpdateSnat function of H3C Magic B1STV100R012 allows attackers to…

Priority HIGH 72CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

A stack overflow in the UpdateSnat function of H3C Magic B1STV100R012 allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00848 58th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:h3c:magic_b1st_firmware:100r012:*:*:*:*:*:*:*100r012VulnerableH3C
cpe:2.3:h:h3c:magic_b1st:-:*:*:*:*:*:*:*not specified by NVDRunning onH3C
  • cpe:2.3:o:h3c:magic_b1st_firmware:100r012:*:*:*:*:*:*:* Versions 100r012 Vulnerable ·H3C
  • cpe:2.3:h:h3c:magic_b1st:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·H3C

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-34937
  2. 2026-10-03 Alias added: GHSA-qp25-xgfj-8r2q

References

Exploit 1

  • TI-2023-17443 A stack overflow in the UpdateMacClone function of H3C Magic B1STV100R012 allows… CVSS 3.1HIGH 7.5
  • TI-2023-17442 A stack overflow in the AddWlanMacList function of H3C Magic B1STV100R012 allows… CVSS 3.1HIGH 7.5
  • TI-2023-17441 A stack overflow in the Edit_BasicSSID_5G function of H3C Magic B1STV100R012 allows… CVSS 3.1HIGH 7.5
  • TI-2023-17440 A stack overflow in the UpdateWanParams function of H3C Magic B1STV100R012 allows… CVSS 3.1HIGH 7.5
  • TI-2023-17439 A stack overflow in the UpdateWanMode function of H3C Magic B1STV100R012 allows attackers… CVSS 3.1HIGH 7.5
  • TI-2023-17438 A stack overflow in the EditWlanMacList function of H3C Magic B1STV100R012 allows… CVSS 3.1HIGH 7.5
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences