How severe is CVE-2016-5313?

CVE-2016-5313 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-5313 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-5313?

CVE-2016-5313 affects Symantec Web Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-5313?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-5313 published?

CVE-2016-5313 was published on 2017-04-12 and last updated on 2026-06-17.

CVE-2016-5313

CVE-2016-5313 is a high-severity vulnerability in Symantec Web Gateway with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Symantec Web Gateway
Published: 2017-04-12
Last modified: 2026-06-17

Description

Symantec Web Gateway (SWG) before 5.2.5 allows remote authenticated users to execute arbitrary OS commands.

Frequently asked questions

What is CVE-2016-5313?: Symantec Web Gateway (SWG) before 5.2.5 allows remote authenticated users to execute arbitrary OS commands.
How severe is CVE-2016-5313?: CVE-2016-5313 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-5313 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-5313?: CVE-2016-5313 affects Symantec Web Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-5313?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-5313 published?: CVE-2016-5313 was published on 2017-04-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:symantec:web_gateway:*:*:*:*:*:*:*:*

More vulnerabilities in Symantec Web Gateway

CVE-2012-2976 — Critical (CVSS 10.0): The management console in Symantec Web Gateway 5.0.x before 5.0.3.18 allows remote attackers to execute arbitrary shell…
CVE-2012-2953 — Critical (CVSS 10.0): The management console in Symantec Web Gateway 5.0.x before 5.0.3.18 allows remote attackers to execute arbitrary…
CVE-2012-0299 — Critical (CVSS 10.0): The file-management scripts in the management GUI in Symantec Web Gateway 5.0.x before 5.0.3 allow remote attackers to…
CVE-2012-0297 — Critical (CVSS 10.0): The management GUI in Symantec Web Gateway 5.0.x before 5.0.3 does not properly restrict access to application scripts,…
CVE-2013-5017 — Critical (CVSS 9.8): SNMPConfig.php in the management console in Symantec Web Gateway (SWG) before 5.2.1 allows remote attackers to execute…
CVE-2015-5690 — High (CVSS 8.5): The management console on Symantec Web Gateway (SWG) appliances with software before 5.2.2 DB 5.0.0.1277 allows remote…

All CVEs affecting Symantec Web Gateway →

Other CWE-78 (OS Command Injection) vulnerabilities

CVE-2026-56004 — Critical (CVSS 10.0): A shellcode injection in the mercurial handler of the obs tar_scm source service before version 0.12.4 could be used by…
CVE-2026-56415 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability within the debug.pl script that is…
CVE-2026-56413 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability in the ms_service.pl service, which listens…
CVE-2026-49869 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, AuthenticationFilter in…
CVE-2026-49261 — Critical (CVSS 10.0): MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through…
CVE-2026-10520 — Critical (CVSS 10.0): An OS Command Injection vulnerability in Ivanti Sentry before the R10.5.2, R10.6.2 and R10.7.1 versions allows a…

Browse all CWE-78 (OS Command Injection) vulnerabilities →