AEGLIX vulnerability intelligence
CVE-2020-15069
CRITICAL · CVSS 9.8 · Analyzed
Published: 2020-06-29 · Updated: 2026-06-17 · Source: NVD
Vulnerability overview
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.
Severity and scoring
- CVSS score
- 9.8 · CRITICAL
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-120
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Sophos · XG Firewall
- Added to catalog
- 2025-02-06
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- CISA remediation due date
- 2025-02-27
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:o:sophos:xg_firewall_firmware:*:*:*:*:*:*:*:*
From (inclusive): 17.0
Before (exclusive): 17.5
cpe:2.3:o:sophos:xg_firewall_firmware:17.5:-:*:*:*:*:*:*
cpe:2.3:o:sophos:xg_firewall_firmware:17.5:maintenance_release1:*:*:*:*:*:*
cpe:2.3:o:sophos:xg_firewall_firmware:17.5:maintenance_release10:*:*:*:*:*:*
cpe:2.3:o:sophos:xg_firewall_firmware:17.5:maintenance_release11:*:*:*:*:*:*
cpe:2.3:o:sophos:xg_firewall_firmware:17.5:maintenance_release12:*:*:*:*:*:*
cpe:2.3:o:sophos:xg_firewall_firmware:17.5:maintenance_release3:*:*:*:*:*:*
cpe:2.3:o:sophos:xg_firewall_firmware:17.5:maintenance_release4:*:*:*:*:*:*
cpe:2.3:o:sophos:xg_firewall_firmware:17.5:maintenance_release5:*:*:*:*:*:*
cpe:2.3:o:sophos:xg_firewall_firmware:17.5:maintenance_release6:*:*:*:*:*:*
cpe:2.3:o:sophos:xg_firewall_firmware:17.5:maintenance_release7:*:*:*:*:*:*
cpe:2.3:o:sophos:xg_firewall_firmware:17.5:maintenance_release8:*:*:*:*:*:*
cpe:2.3:o:sophos:xg_firewall_firmware:17.5:maintenance_release9:*:*:*:*:*:*
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://community.sophos.com/b/security-blog/posts/advisory-buffer-overflow-vulnerability-in-user-portal
Mitigation · Vendor Advisory
- https://community.sophos.com/b/security-blog/posts/advisory-buffer-overflow-vulnerability-in-user-portal
Mitigation · Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-15069
US Government Resource