Paper/Archive/CVE-2026-121599

CVE-2026-121599

TOTOLINK A950RG — TOTOLINK A950RG Multi-SSID Configuration cstecgi.cgi delWiFiMultipleConfig stack-based overflow

CVSS 9.9 (CNA)9.9 / 10 × 3029.7 Not in CISA KEV+300.0 No EPSS score.000 × 200.0 No public exploit+100.0 SSVC exploitation: unknown+100.0

Description · from the CVE record

A vulnerability was detected in TOTOLINK A950RG 4.1.2cu.5268_B20221104. Affected is the function setWiFiMultipleConfig/delWiFiMultipleConfig of the file /cgi-bin/cstecgi.cgi of the component Multi-SSID Configuration. The manipulation of the argument wepkey2/wepkey3 results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit is now public and may be used.

Affected

ProductAffectedFixed inSource

A950RG4.1.2cu.5268_B20221104–CNA

Scores by source

VulDB (CNA)9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

VulDB (CNA)9.9CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

VulDB (CNA)9.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P

References

writeupvuldb.com/vuln/430441 refvuldb.com/vuln/430441/cti writeupvuldb.com/cve/CVE-2026-121599 writeupvuldb.com/submit/1022561 exploitgist.github.com/H3rmesk1t/44673654282c9b21bc8971bab7e4b8a3 reftotolink.net