CVE-2026-0620 L2TP over IPSec Encryption Failure on ArcherAXE75
Attackers can intercept unencrypted L2TP VPN traffic on TP-Link Archer AXE75 routers due to a failure to enforce IPSec encryption.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-0620?
CVE-2026-0620 is a medium-severity vulnerability in TP-Link Systems Inc. AXE75, published on 3 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
When configured as L2TP/IPSec VPN server, Archer AXE75 V1 may accept connections using L2TP without IPSec protection, even when IPSec is enabled. This allows VPN sessions without encryption, exposing data in transit and compromising confidentiality.
Weakness: CWE-693
Which versions are affected by CVE-2026-0620?
How do I fix CVE-2026-0620?
No fix has been published for CVE-2026-0620 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-0620 being exploited?
There is no known exploitation of CVE-2026-0620 in the wild and no public exploit code.
Sources
Also known as GHSA-q4rj-q7j3-gxf6.