CVE-2020-15069

Published: Jun 29, 2020Updated: Nov 7, 2025 Sources: CVE List NVDCWE-120

NVD MITRE

9.8CVSSCRITICAL

EPSS Score

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.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

Open in CVSS calculator →

Weaknesses

CWE-120

Affected Products

n/a n/a

xg firewall firmware sophos Security Products

sophoscommercialGBSecurity Productsaka sophos ltd.

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

CISA Known Exploited Vulnerability

Added to KEV:Feb 6, 2025

Remediation due:Feb 27, 2025

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

Workaround Available

MITRE ATT&CK

2 techniques

Initial Access

Privilege Escalation

View detailed technique mapping

References

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

community.sophos.com

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-15069

cisa.gov

Timeline

Published

Jun 29, 2020

Added to CISA KEV

Feb 6, 2025

Last Updated

Nov 7, 2025

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2020-15069 and every CVE in our database. Create a free account — no credit card required.

Create Free Account

Plain-language analysis

Impact assessment and exploitation scenario in plain English

Attack graph visualization

Interactive attack path and kill chain mapping

Exploit details & PoC links

ExploitDB, Metasploit, GitHub PoCs with direct links

Nuclei scanner templates

Ready-to-use vulnerability scanner templates

Full remediation guide

Patch instructions, workarounds, and compliance impact

Interactive AI chat

Ask questions about this vulnerability in natural language

Related vulnerabilities

Semantically similar CVEs and attack patterns

REST API & MCP access

Integrate vulnerability data into your workflows