SonicWall VPN Client DoS Flaw Patched
A denial-of-service vulnerability in SonicWall Global VPN Client versions before 5.0.0.2008 was disclosed with a vendor patch available.
Sourcecert.ssi.gouv.fr — open the original
What to check
- Applies to
- The 1 CVE named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
ANSSI-FR issued an advisory regarding a vulnerability in SonicWall's Global VPN Client affecting versions prior to 5.0.0.2008. The flaw, tracked as CVE-2026-66151, allows an attacker to trigger a denial-of-service condition on affected systems.
SonicWall published a corresponding security bulletin (SNWLID-2026-0010) on August 6, 2026, alongside patches. Organizations using the affected client versions should apply the vendor-provided fixes to mitigate the risk. There is no indication in the advisory of active exploitation in the wild.
Mentioned in this report
Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0990
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