What is CVE-2025-45845?

CVE-2025-45845 is a high-severity vulnerability in Totolink Nr1800x, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2025-05-08.

How severe is CVE-2025-45845?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Totolink Nr1800x

CVE-2025-45845

TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack overflow via the ssid5g parameter in the setWiFiEasyGuestCfg function.

Vulnerability class: Buffer Overflow

EPSS: 0.006 (44.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Totolink Nr1800x
Totolink Nr1800x_firmware — versions 9.1.0u.6681_b20230703
N/a — versions n/a

Weakness classification (CWE)

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

References

cve@mitre.org (Product)
cve@mitre.org (Product)
cve@mitre.org (Exploit)

Frequently asked questions

What is CVE-2025-45845?: CVE-2025-45845 is a high-severity vulnerability in Totolink Nr1800x, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2025-05-08.
How severe is CVE-2025-45845?: High severity. CVSS v3 base score is 8.8 out of 10.