by Kastro
Paper/Archive/CVE-2025-12239

CVE-2025-12239

TOTOLINK A3300R — TOTOLINK A3300R cstecgi.cgi setDdnsCfg buffer overflow

EPSS 0.8%public exploitCVSS 9.8
critical.is priorityof 100
51
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 57.6.576 × 2011.5Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
A3300R17.0.0cu.557_B20221024–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulDB (CNA)8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: partial

References

writeupvuldb.com/?id.329909refvuldb.com/?ctiid.329909writeupvuldb.com/?submit.673721exploitgithub.com/noahze01/IoT-vulnerable/blob/main/TOTOLink/A3300R/setDdnsCfg.mdreftotolink.net