CVE-2020-15069

sophos xg firewall firmware

Published 29 Jun 2020 · updated 17 Jun 2026 · Analyzed

9.8 Critical · CVSS 3.1, NVD

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 6 Feb 2025, with a remediation deadline of 27 Feb 2025 for US federal agencies.

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Description

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.

References

community.sophos.com/b/security-blog/posts/advisory-buffer-overflow-vulnerability-in-user-portal · Mitigation, Vendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-15069 · US Government Resource