What’s Vulnerable › Vulnerabilities

CVE-2025-28034

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-04-22 · updated 2026-06-17
• Weakness: CWE-78

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 remote command execution vulnerability in the NTPSyncWithHost function through the hostTime 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/RCE2-1a98e5e2b1a280bebf53d868f1b1a711?pvs=74
• https://locrian-lightning-dc7.notion.site/CVE-2025-28034-RCE2-1a98e5e2b1a280bebf53d868f1b1a711

Get alerted when CVE-2025-28034 or the next vulnerability affects your stack