CVE-2012-1821

Name: CVE-2012-1821
Creator: NVD / NIST
Published: 2012-05-24T00:55:02.727+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.87%

Last modified Jun 16, 2026

CVE-2012-1821 is a vulnerability of currently unknown severity. The Network Threat Protection module in the Manager component in Symantec Endpoint Protection (SEP) 11.0.600x through 11.0.700x on Windows Server 2003 allows remote attackers to cause a denial of service (web-server outage, or daemon crash or hang) via a flood of packets that triggers automated blocking of network traffic.. EPSS estimates a 2.87% chance of exploitation in the next 30 days.

Description

The Network Threat Protection module in the Manager component in Symantec Endpoint Protection (SEP) 11.0.600x through 11.0.700x on Windows Server 2003 allows remote attackers to cause a denial of service (web-server outage, or daemon crash or hang) via a flood of packets that triggers automated blocking of network traffic.

Metrics

EPSS Probability

2.87%

85.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Symantec	Endpoint Protection	11.0.6000
Symantec	Endpoint Protection	11.0.6100
Symantec	Endpoint Protection	11.0.6200
Symantec	Endpoint Protection	11.0.6200.754
Symantec	Endpoint Protection	11.0.6300
Symantec	Endpoint Protection	11.0.7000
Symantec	Endpoint Protection	11.0.7100

References

Timeline

Published: May 24, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2012-1821?

How severe is CVE-2012-1821?

Severity scoring for CVE-2012-1821 is pending analysis. The EPSS model estimates a 2.87% probability of exploitation in the next 30 days.

How do I fix CVE-2012-1821?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2012-1821?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST