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High severity8.8NVD Advisory· Published Mar 16, 2026· Updated Jun 17, 2026

CVE-2026-4213

CVE-2026-4213

Description

A vulnerability was detected in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This vulnerability affects the function cgi_myfavorite_del_user/cgi_myfavorite_verify of the file /cgi-bin/gui_mgr.cgi. Performing a manipulation results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

43
  • Dlink/Dnr 202l Firmware
    cpe:2.3:o:dlink:dnr-202l_firmware:*:*:*:*:*:*:*:*
    Range: <=2026-02-05
  • Dlink/Dnr 326 Firmware
    cpe:2.3:o:dlink:dnr-326_firmware:*:*:*:*:*:*:*:*
    Range: <=2026-02-05
  • Dlink/DNS 1100 4 Firmware2 versions
    cpe:2.3:o:dlink:dns-1100-4_firmware:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:dlink:dns-1100-4_firmware:*:*:*:*:*:*:*:*range: <=2026-02-05
    • (no CPE)range: 20260205
  • Dlink/DNS 1200 05 Firmware3 versions
    cpe:2.3:o:dlink:dns-1200-05_firmware:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:dlink:dns-1200-05_firmware:*:*:*:*:*:*:*:*range: <=2026-02-05
    • cpe:2.3:o:dlink:dns-120_firmware:*:*:*:*:*:*:*:*range: <=2026-02-05
    • (no CPE)range: 20260205
  • Dlink/DNS 1550 04 Firmware
    cpe:2.3:o:dlink:dns-1550-04_firmware:*:*:*:*:*:*:*:*
    Range: <=2026-02-05
  • Dlink/DNS 325 Firmware3 versions
    cpe:2.3:o:dlink:dns-315l_firmware:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:dlink:dns-315l_firmware:*:*:*:*:*:*:*:*range: <=2026-02-05
    • cpe:2.3:o:dlink:dns-320l_firmware:*:*:*:*:*:*:*:*range: <=2026-02-05
    • cpe:2.3:o:dlink:dns-325_firmware:*:*:*:*:*:*:*:*range: <=2026-02-05
  • Dlink/DNS 320 Firmware
    cpe:2.3:o:dlink:dns-320_firmware:*:*:*:*:*:*:*:*
    Range: <=2026-02-05
  • Dlink/DNS 320lw Firmware
    cpe:2.3:o:dlink:dns-320lw_firmware:*:*:*:*:*:*:*:*
    Range: <=2026-02-05
  • Dlink/DNS 321 Firmware
    cpe:2.3:o:dlink:dns-321_firmware:*:*:*:*:*:*:*:*
    Range: <=2026-02-05
  • Dlink/DNS 322l Firmware
    cpe:2.3:o:dlink:dns-322l_firmware:*:*:*:*:*:*:*:*
    Range: <=2026-02-05
  • Dlink/DNS 327l Firmware2 versions
    cpe:2.3:o:dlink:dns-323_firmware:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:dlink:dns-323_firmware:*:*:*:*:*:*:*:*range: <=2026-02-05
    • cpe:2.3:o:dlink:dns-327l_firmware:*:*:*:*:*:*:*:*range: <=2026-02-05
  • Dlink/DNS 326 Firmware
    cpe:2.3:o:dlink:dns-326_firmware:*:*:*:*:*:*:*:*
    Range: <=2026-02-05
  • Dlink/DNS 340l Firmware
    cpe:2.3:o:dlink:dns-340l_firmware:*:*:*:*:*:*:*:*
    Range: <=2026-02-05
  • Dlink/DNS 343 Firmware
    cpe:2.3:o:dlink:dns-343_firmware:*:*:*:*:*:*:*:*
    Range: <=2026-02-05
  • Dlink/DNS 345 Firmware
    cpe:2.3:o:dlink:dns-345_firmware:*:*:*:*:*:*:*:*
    Range: <=2026-02-05
  • Dlink/DNS 726 4 Firmware
    cpe:2.3:o:dlink:dns-726-4_firmware:*:*:*:*:*:*:*:*
    Range: <=2026-02-05
  • Dlink/DNS-320llm-create8 versions
    <=20260205+ 7 more
    • (no CPE)range: <=20260205
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
  • Dlink/DNS-120llm-create2 versions
    <=20260205+ 1 more
    • (no CPE)range: <=20260205
    • (no CPE)range: 20260205
  • Dlink/DNR-202Lllm-create2 versions
    <=20260205+ 1 more
    • (no CPE)range: <=20260205
    • (no CPE)range: 20260205
  • Dlink/DNR-326cpe-rescue2 versions
    20260205+ 1 more
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
  • Dlink/DNS-1550-04cpe-rescue
    Range: 20260205
  • Dlink/DNS-315Lcpe-rescue
    Range: 20260205
  • Dlink/DNS-327Lcpe-rescue
    Range: 20260205
  • Dlink/DNS-340Lcpe-rescue
    Range: 20260205
  • Dlink/DNS-343cpe-rescue2 versions
    20260205+ 1 more
    • (no CPE)range: 20260205
    • (no CPE)range: 20260205
  • D-Link/DNS-726-4v5
    Range: 20260205

Patches

Vulnerability mechanics

References

7

News mentions

0

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