Guest Post: Record-breaking number of router security flaws discovered in the last few years

The data presented by Atlas VPN reveals that router vulnerabilities have surged to record heights in the past few years. 

It is argued that routers have received more attention due to the increase in remote work, which opens up the possibility for hackers to breach corporate security by abusing old and unpatched home routers.

Router security flaws are hazardous as they may expose individuals and corporate networks to cybersecurity dangers such as hacking, data breaches, financial fraud, industrial espionage, and others.

The figures for the analysis were extracted by Kaspersky from and Even though these data sources show a different number of flaws, they both depict a clear upward trend in vulnerabilities.

According to, researchers found a record-breaking 321 vulnerabilities in 2021, the highest in over a decade. Yet, the increase started a year before, when flaws jumped from 130 in 2019 to 206 in 2020, representing a growth of 58%. 

On the other hand, data from informs us that 2020 was the worst year for router flaws, with a total of 603 vulnerabilities, a substantial increase of 191% over 2019.  

However, 2021 was not much better, as vulnerabilities remained alarmingly high.

More importantly, out of 506 vulnerabilities identified last year, 87 of them were marked as critical. Of these vital flaws, 29.9% remained unpatched and without updates of any kind from the vendors. 

Another 26% of critical flaws were only acknowledged by the vendors but not fixed as of June 8, 2022.

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