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CVE-2020-15069

Critical CVSS 9.8 Known exploited

Published 2020-06-29 · last changed 2026-06-17 · added to CISA KEV 2025-02-06

This one is being exploited in the wild.

CISA added CVE-2020-15069 to the Known Exploited Vulnerabilities catalog on 2025-02-06. Federal agencies are required to remediate it on a deadline. If you have affected machines, this is the class of finding that moves ahead of the rest of the queue.

The fix

We hold no Microsoft remediation data for CVE-2020-15069, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

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.

Sources

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H