CVE-2025-28033

Severity: high (CVSS 7.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-04-22 · updated 2026-06-17
Weakness: CWE-121

Description

TOTOLINK A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A3100R V4.1.2cu.5247_B20211129 were found to contain a pre-auth buffer overflow vulnerability in the setNoticeCfg function through the IpTo parameter.

Affected products

TOTOLINK A3000RU: 5.9c.5185_b20201128
TOTOLINK A3100R: 4.1.2cu.5247_b20211129
TOTOLINK A800R Firmware: 4.1.2cu.5137_b20200730
TOTOLINK A810R Firmware: 4.1.2cu.5182_b20201026
TOTOLINK A830R Firmware: 4.1.2cu.5182_b20201102
TOTOLINK A950Rg Firmware: 4.1.2cu.5161_b20200903

References

https://locrian-lightning-dc7.notion.site/BufferOverflow7-1a98e5e2b1a280708d6ec6155ce88d8c
https://locrian-lightning-dc7.notion.site/CVE-2025-28033-BufferOverflow7-1a98e5e2b1a280708d6ec6155ce88d8c

Get alerted when CVE-2025-28033 or the next vulnerability affects your stack