CVE-2020-15069

CriticalCVSS 9.8/10Known exploited (CISA KEV)Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-120

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

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

Timeline

Published: Jun 29, 2020
Last modified: Jun 17, 2026
Added to CISA KEV: Feb 6, 2025
NVD status: Analyzed

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