CVE-2025-12258
CVSS v3
8.8
HIGH
EPSS Score
1.0 %
exploit probability, as of 2026-09-27
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A vulnerability was detected in TOTOLINK A3300R 17.0.0cu.557_B20221024. Impacted is the function setOpModeCfg of the file /cgi-bin/cstecgi.cg of the component POST Parameter Handler. The manipulation of the argument opmode results in stack-based buffer overflow. The attack may be performed from remote.
Technical details
- Published
- 2025-10-27
Frequently asked questions
What is CVE-2025-12258?
A vulnerability was detected in TOTOLINK A3300R 17.0.0cu.557_B20221024. Impacted is the function setOpModeCfg of the file /cgi-bin/cstecgi.cg of the component POST Parameter Handler. The manipulation of the argument opmode results in stack-based buffer overflow. The attack may be performed from remote.
Is CVE-2025-12258 actively exploited?
Active exploitation of CVE-2025-12258 has not been confirmed. Its EPSS score was 1.0% on 2026-09-27, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2025-12258?
CVE-2025-12258 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2025-12258 affecting your environment?
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