CVE-2012-1821: n/a vulnerability

CVE-2012-1821: The Network Threat Protection module in the Manager component in Symantec Endpoint Protection (SEP) 11.0.60...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 19:08 UTC (UTC+00:00)

Security readout for executives and security teams

This CVE affects older Symantec Endpoint Protection Manager deployments on Windows Server 2003. A remote packet flood can trigger Network Threat Protection to block traffic, causing a management web-server outage or service crash, hang, or denial of service. Exposure is likely limited to legacy SEP Manager 11.0.600x-11.0.700x systems still running on Windows Server 2003, especially where management services are reachable from untrusted networks. Prioritize if legacy SEP Manager still protects critical endpoints or is reachable beyond trusted networks. The main risk is loss of endpoint management availability, not data theft based on the provided sources. Mitigation focus: Inventory SEP Manager versions and Windows Server 2003 hosts.; Review the Symantec advisory for supported fixes or workarounds.; Isolate SEP Manager access to trusted administrative networks..

Prepared: Jun 24, 2026, 12:34 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 24, 2012, 00:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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