How severe is CVE-2020-15069?

CVE-2020-15069 has a CVSS 3.1 base score of 9.8 (CRITICAL). EPSS estimates a 10.7% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2020-15069: Sophos XG Firewall Buffer Overflow

CISA Known Exploited Vulnerabilities

Sophos XG Firewall Buffer Overflow Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2025-02-06

Remediation due

2025-02-27

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

CISA 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

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.

Severity

CVSS 3.1 · CISA9.8 CRITICAL

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

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
-	-	n/a

References

1 Links

Other references

https://community.sophos.com/b/security-blog/posts/advisory-buffer-overflow-vulnerability-in-user-portal

Record Details

Published

2020-06-29

Last updated

2025-10-21

Assigner (CNA)

mitre

Credited to

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.