What is CVE-2025-45787?

CVE-2025-45787 is a critical-severity vulnerability in Totolink A3100r, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2025-05-08.

How severe is CVE-2025-45787?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Totolink A3100r

CVE-2025-45787

TOTOLINK A3100R V5.9c.1527 is vulnerable to Buffer Overflow viathe comment parameter in setIpPortFilterRules.

Vulnerability class: Buffer Overflow

EPSS: 0.007 (47.5th percentile) — read the EPSS interpretation.

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.

Affected products

Totolink A3100r
Totolink A3100r_firmware — versions 5.9c.1527
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write
CWE-121 — Stack-based Buffer Overflow

References

cve@mitre.org (Exploit)

Frequently asked questions

What is CVE-2025-45787?: CVE-2025-45787 is a critical-severity vulnerability in Totolink A3100r, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2025-05-08.
How severe is CVE-2025-45787?: Critical severity. CVSS v3 base score is 9.8 out of 10.