Buffer overflow in Totolink A950rg

CVE-2025-45797

TOTOlink A950RG V4.1.2cu.5204_B20210112 contains a buffer overflow vulnerability. The vulnerability arises from the improper input validation of the NoticeUrl parameter in the setNoticeCfg interface of /lib/cste_modules/system.so.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.175 (97.0th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-45797: rose from 0.168 to 0.175.

EPSS over last 30 days · oldest: 0.168 · newest: 0.175 · change: +0.006

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-45797?
CVE-2025-45797 is a critical-severity vulnerability in Totolink A950rg, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2025-05-08.
How severe is CVE-2025-45797?
Critical severity. CVSS v3 base score is 9.8 out of 10.