Secuno
ENNL
Book demo

CVE-2025-28034

TOTOLINK A3000ru Firmware vulnerability

9.8 CRITICALEPSS 1.34%
  1. Published22 Apr 2025

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

TOTOLINK A3000ru Firmware5.9c.5185_b20201128
TOTOLINK A3100r Firmware4.1.2cu.5247_b20211129
TOTOLINK A800r Firmware4.1.2cu.5137_b20200730
TOTOLINK A810r Firmware4.1.2cu.5182_b20201026
TOTOLINK A830r Firmware4.1.2cu.5182_b20201102
TOTOLINK A950rg Firmware4.1.2cu.5161_b20200903

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Frequently asked

Is CVE-2025-28034 being actively exploited?

CVE-2025-28034 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.34%.

How severe is CVE-2025-28034?

CVE-2025-28034 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.34% probability of exploitation.

Which products are affected by CVE-2025-28034?

Affected products include TOTOLINK A3000ru Firmware, TOTOLINK A3100r Firmware, TOTOLINK A800r Firmware, TOTOLINK A810r Firmware, TOTOLINK A830r Firmware, and 1 more.

How do I fix CVE-2025-28034?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-28034 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.