CVE-2025-28021

HIGH

Published Apr 23, 2025 Modified May 6, 2025 CWE-120

Description

TOTOLINK A810R V4.1.2cu.5182_B20201026 was found to contain a buffer overflow vulnerability in the downloadFile.cgi through the v14 and v3 parameters

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CVSS v3.1 Score

7.3

HIGH

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

Weakness Type (CWE)

CWE-120 CWE-120

Affected Products

Vendor	Product	Versions
totolink	a810r_firmware	All
totolink	a810r	All

References

Exploits

https://locrian-lightning-dc7.notion.site/BufferOverflow1-1948e5e2b1a280e8aa5ad87964c5cd3d?pvs=73 https://locrian-lightning-dc7.notion.site/CVE-2025-28021-BufferOverflow1-1948e5e2b1a280e8aa5ad87964c5cd3d

Frequently Asked Questions

What is CVE-2025-28021? +

TOTOLINK A810R V4.1.2cu.5182_B20201026 was found to contain a buffer overflow vulnerability in the downloadFile.cgi through the v14 and v3 parameters It has a CVSS v3.1 base score of 7.3 (HIGH).

How severe is CVE-2025-28021? +

CVE-2025-28021 has a CVSS v3.1 score of 7.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-28021? +

CVE-2025-28021 affects products from totolink, specifically: a810r, a810r_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-28021? +

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.

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