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Vulnerability record · CVE-2018-16118 · published 20 June 2019

CVE-2018-16118: Sophos sfos os command injection vulnerability

Sophos · Sfos

A shell escape vulnerability in /webconsole/APIController in the API Configuration component of Sophos XG firewall 17.0.8 MR-8 allows remote attackers to execute arbitrary OS commands via shell metachracters in the "X-Forwarded-for" HTTP header.

8.1 CVSS 3.0 High EPSS 3.7% · top 10.6% CWE-78 · OS command injection
8.1CVSS 3.0 base score, v2 9.3
3.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

A shell escape vulnerability in /webconsole/APIController in the API Configuration component of Sophos XG firewall 17.0.8 MR-8 allows remote attackers to execute arbitrary OS commands via shell metachracters in the "X-Forwarded-for" HTTP header.

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://community.sophos.com/kb/en-us/132637 Vendor Advisory
https://github.com/klsecservices/Advisories/blob/master/KL-SOPHOS-2018-003.md PatchThird Party Advisory
https://www.sophos.com/en-us/legal/sophos-responsible-disclosure-policy.aspx Vendor Advisory
https://community.sophos.com/kb/en-us/132637 Vendor Advisory
https://github.com/klsecservices/Advisories/blob/master/KL-SOPHOS-2018-003.md PatchThird Party Advisory
https://www.sophos.com/en-us/legal/sophos-responsible-disclosure-policy.aspx Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-1040Sophos Firewall auth bypass in User Portal and Webadmin leads to RCESophos Firewall v18.5 MR3 and older contain an authentication bypass in the User Portal and Webadmin that lets a remote attacker execute code. The fl…KEVEPSS 100%analysed9.8CVE-2020-12271Sophos XG Firewall SFOS SQL Injection Leading to RCESophos XG Firewall devices running SFOS 17.0, 17.1, 17.5, and 18.0 before 2020-04-25 contain a SQL injection flaw in the administration (HTTPS) servi…KEVEPSS 42%analysed9.8CVE-2020-11503Sophos sfos out-of-bounds write vulnerabilityA heap-based buffer overflow in the awarrensmtp component of Sophos XG Firewall v17.5 MR11 and older potentially allows an attacker to run arbitrary …EPSS 1.4%8.8CVE-2018-16117Sophos sfos os command injection vulnerabilityA shell escape vulnerability in /webconsole/Controller in Admin Portal of Sophos XG firewall 17.0.8 MR-8 allow remote authenticated attackers to exec…EPSS 44%8.8CVE-2018-16116Sophos sfos sql injection vulnerabilitySQL injection vulnerability in AccountStatus.jsp in Admin Portal of Sophos XG firewall 17.0.8 MR-8 allow remote authenticated attackers to execute ar…EPSS 1.9%6.1CVE-2017-18014Sophos sfos cross-site scripting vulnerabilityAn NC-25986 issue was discovered in the Logging subsystem of Sophos XG Firewall with SFOS before 17.0.3 MR3. An unauthenticated user can trigger a pe…EPSS 2.3%5.3CVE-2022-0331Sophos sfos vulnerabilityAn information disclosure vulnerability in Webadmin allows an unauthenticated remote attacker to read the device serial number in Sophos Firewall ver…EPSS 1.5%8.8CVE-2026-53266Linux kernel ebtables SNAT out-of-bounds write in ARP rewriteThe ebtables SNAT target rewrites the ARP sender hardware address via skb_store_bits() without first making that range writable. When the ARP SHA byt…KEVEPSS 0.65%analysed

Source: NIST National Vulnerability Database (record CVE-2018-16118), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.