CVE-2025-45843

HIGH
Published May 8, 2025 Modified May 16, 2025 CWE-787 CWE-121

Description

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

Is your site exposed to CVE-2025-45843?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-787 Out-of-bounds Write
CWE-121 CWE-121

Affected Products

Vendor Product
totolink nr1800x_firmware
totolink nr1800x

References

Frequently Asked Questions

What is CVE-2025-45843? +
TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack overflow via the ssid parameter in the setWiFiGuestCfg function. It has a CVSS v3.1 base score of 8.8 (HIGH).
How severe is CVE-2025-45843? +
CVE-2025-45843 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2025-45843? +
CVE-2025-45843 affects products from totolink, specifically: nr1800x, nr1800x_firmware. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-45843? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-8358

LibreOffice Calc can import tracked changes from a spreadsheet document. A heap buffer overflow existed when a document reused the …
CVE-2026-8356

LibreOffice can import presentations in the legacy binary PPT format. A stack buffer overflow existed when importing a colour-replacement record. …
CVE-2026-6040

A heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the …
CVE-2026-6039

LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a …
CVE-2026-15422

The illumos SCTP inbound path performs association lookup for INIT ACK chunks without adequately validating the address parameters carried in …
CVE-2026-15997

Out-of-bounds write vulnerability in Legion of the Bouncy Castle Inc. BC-LTS bcprov-lts8on on ARM allows Overflow Buffers. This vulnerability is …

Don't wait for an exploit

Scan your website for vulnerabilities like CVE-2025-45843 — free, no signup required.