# CVE-2020-15069: Sophos XG Firewall Buffer Overflow Vulnerability

Source: https://junglewise.ai/threats/cve-2020-15069-sophos-xg-firewall-buffer-overflow-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-02-06. Updated: 2026-05-09  
License: CC BY 4.0 with a link back

CVE-2020-15069 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2025-02-06

Sophos XG Firewall contains a classic buffer overflow vulnerability in the HTTP/S Bookmarks feature for clientless access. This flaw allows unauthenticated remote attackers to execute arbitrary code on the device.

Vendors: [Sophos](https://junglewise.ai/threats/vendors/sophos).

## Quick answers

**Is CVE-2020-15069 exploited in the wild?** Yes. CVE-2020-15069 is known to be exploited in the wild, first recorded on 6 February 2025. Treat it as urgent.

**How severe is CVE-2020-15069?** Critical severity, with a CVSS score of 9.8, published 6 February 2025.

**Which products and versions are affected?** Sophos XG Firewall Firmware 17.x through 17.5 MR12.

**Is there a fix for CVE-2020-15069?** A patch was published on 2020-06-29: Hotfix HF062020.1 released for v17.x Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2020-15069 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2020-15069?** Check whether you run Sophos XG Firewall. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Sophos XG Firewall Firmware 17.x through 17.5 MR12

## Timeline

- 2020-06-29: disclosed: NVD Published Date
- 2020-06-29: patched: Hotfix HF062020.1 released for v17.x
- 2025-02-06: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2025-02-06: exploited: Reported as exploited in the wild per CISA KEV entry