Sophos XG Firewall Buffer Overflow Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 06/02/2025. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| XG Firewall | Versions not published yet (product named by CISA KEV) | |
Sophos XG Firewall 17.x through v17.5 MR12 allows a Buffer Overflow and remote code execution via the HTTP/S Bookmarks feature for clientless access. Hotfix HF062020.1 was published for all firewalls running v17.x.
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