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TI-2023-23151 Aliases CVE-2023-43239GHSA-8j5g-957r-vpvw

D-Link DIR-816 A2 v1.10CNB05 was discovered to contain a stack overflow via parameter flag_5G in showMACfilterMAC.

Priority HIGH 76CWE-121Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

D-Link DIR-816 A2 v1.10CNB05 was discovered to contain a stack overflow via parameter flag_5G in showMACfilterMAC.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.13317 96th 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
No
Technical impact
Total

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:dlink:dir-816_a2_firmware:1.10cnb05:*:*:*:*:*:*:*1.10cnb05VulnerableD-Link Japan K.K.
cpe:2.3:h:dlink:dir-816_a2:-:*:*:*:*:*:*:*not specified by NVDRunning onD-Link Japan K.K.
  • cpe:2.3:o:dlink:dir-816_a2_firmware:1.10cnb05:*:*:*:*:*:*:* Versions 1.10cnb05 Vulnerable ·D-Link Japan K.K.
  • cpe:2.3:h:dlink:dir-816_a2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·D-Link Japan K.K.

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-43239
  2. 2026-10-03 Alias added: GHSA-8j5g-957r-vpvw

References

Exploit 1

Advisory 1

  • TI-2024-00849 D-Link DIR-816 A2 Web Interface setDeviceSettings os command injection CVSS 3.1CRITICAL 9.8
  • TI-2023-23152 D-Link DIR-816 A2 v1.10CNB05 was discovered to contain a stack overflow via parameter sip_address in ipportFilter. CVSS 3.1CRITICAL 9.8
  • TI-2023-23150 D-Link DIR-816 A2 v1.10CNB05 was discovered to contain a stack overflow via parameter nvmacaddr in form2Dhcpip.cgi. CVSS 3.1CRITICAL 9.8
  • TI-2023-23149 D-Link DIR-816 A2 v1.10CNB05 was discovered to contain a stack overflow via parameter macCloneMac in setMAC. CVSS 3.1CRITICAL 9.8
  • TI-2023-23148 D-Link DIR-816 A2 v1.10CNB05 was discovered to contain a stack overflow via parameter… CVSS 3.1CRITICAL 9.8
  • TI-2025-28650 D-Link DIR-816 A2V1.1.0B05 was found to contain a command injection in… CVSS 3.1MEDIUM 6.3
See all 12 →

Sources

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