CVEvulnerability

CVE-2020-15069

9.8 CRITICAL Known exploited Published 2020-06-29 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Sophos XG Firewall Buffer Overflow Vulnerability — Sophos XG Firewall

Sophos XG Firewall contains a buffer overflow vulnerability that allows for remote code execution via the "HTTP/S bookmark" feature.

Added to KEV
2025-02-06
Remediation due
2025-02-27
Ransomware use
Unknown
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes
https://community.sophos.com/b/security-blog/posts/advisory-buffer-overflow-vulnerability-in-user-portal ; https://nvd.nist.gov/vuln/detail/CVE-2020-15069
Status
Analyzed
Published
2020-06-29
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-120

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.

Affected configurations

• sophos xg firewall firmware (>= 17.0 < 17.5) • sophos xg firewall firmware 17.5

Related

Weakness · CWE (1)

  • CWE-120 Buffer Copy without Checking Size of Input weakness

References