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CVE-2016-9554

48
FAUCET Score

CVE-2016-9554 describes a remote command injection vulnerability in the Sophos Web Appliance Remote / Secure Web Gateway server, specifically version 4.2.1.3. This flaw resides in the MgrDiagnosticTools.php component, where unsanitized user input in the 'url' variable allows for arbitrary command execution via the UNIX wget utility. With a CVSS score of 7.2 (High), this vulnerability can be exploited remotely with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability, granting shell access under the 'spiderman' user. While not observed in active exploitation or on the CISA KEV catalog, a Metasploit module for this vulnerability is publicly available on ExploitDB, though it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.2.1.3CPE matchmatch criteria
cpe:2.3:a:sophos:web_appliance:4.2.1.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.2HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
24.63%
Probability of exploitation in next 30 days
EPSS Percentile
97.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-41414 · Dec 12, 2016
This CVE's current EPSS score of 0.2463 is in the 96th percentile among its peer group of 5,531 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

pastebin.com / UB8Ye6ZU
Exploit
community.sophos.com / products/web-appliance/b/blog/posts/release-of-swa-version-4-3-1
Release Notes
securityfocus.com / bid/95858
Third Party AdvisoryVDB Entry