How severe is CVE-2013-4673?

CVE-2013-4673 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2013-4673 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-4673?

CVE-2013-4673 primarily affects Symantec Web Gateway. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-4673?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-4673 published?

CVE-2013-4673 was published on 2013-08-01 and last updated on 2026-06-16.

CVE-2013-4673

CVE-2013-4673 is a medium-severity vulnerability in Symantec Web Gateway with a CVSS 2.0 base score of 5.8. 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-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.8)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Symantec Web Gateway
Published: 2013-08-01
Last modified: 2026-06-16

Description

The management console on the Symantec Web Gateway (SWG) appliance before 5.1.1 does not properly implement RADIUS authentication, which allows remote attackers to execute arbitrary code by leveraging access to the login prompt.

Frequently asked questions

What is CVE-2013-4673?: The management console on the Symantec Web Gateway (SWG) appliance before 5.1.1 does not properly implement RADIUS authentication, which allows remote attackers to execute arbitrary code by leveraging access to the login prompt.
How severe is CVE-2013-4673?: CVE-2013-4673 has a CVSS 2.0 base score of 5.8, rated medium severity.
Is CVE-2013-4673 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-4673?: CVE-2013-4673 primarily affects Symantec Web Gateway. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-4673?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-4673 published?: CVE-2013-4673 was published on 2013-08-01 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:a:symantec:web_gateway:*:*:*:*:*:*:*:*
cpe:2.3:a:symantec:web_gateway:5.0:*:*:*:*:*:*:*
cpe:2.3:a:symantec:web_gateway:5.0.1:*:*:*:*:*:*:*
cpe:2.3:a:symantec:web_gateway:5.0.2:*:*:*:*:*:*:*
cpe:2.3:a:symantec:web_gateway:5.0.3:*:*:*:*:*:*:*
cpe:2.3:a:symantec:web_gateway:5.0.3.18:*:*:*:*:*:*:*
cpe:2.3:h:symantec:web_gateway_appliance_8450:-:*:*:*:*:*:*:*
cpe:2.3:h:symantec:web_gateway_appliance_8490:-:*:*:*:*:*:*:*

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-2016-5313 — High (CVSS 8.8): Symantec Web Gateway (SWG) before 5.2.5 allows remote authenticated users to execute arbitrary OS commands.

All CVEs affecting Symantec Web Gateway →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →