VAR-202510-2078

Vulnerability from variot - Updated: 2025-11-19 23:22

A weakness has been identified in TOTOLINK A3300R 17.0.0cu.557_B20221024. The impacted element is the function setDdnsCfg of the file /cgi-bin/cstecgi.cgi. Executing manipulation can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be exploited. The TOTOLINK A3300R is a dual-band wireless router manufactured by TOTOLINK Electronics Co., Ltd. in China, primarily used in home and small network environments. This vulnerability stems from the fact that the function setDdnsCfg in the file /cgi-bin/cstecgi.cgi fails to properly validate the length of input data. Attackers could exploit this vulnerability to execute arbitrary code on the system or cause a denial-of-service attack

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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