CVE-2012-1821
CVE-2012-1821 is a medium-severity vulnerability in Symantec Endpoint Protection with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 2.0 base score 5.0)
- EPSS exploit prediction: 3% (85th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Symantec Endpoint Protection
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2012-1821?
- 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.
- How severe is CVE-2012-1821?
- CVE-2012-1821 has a CVSS 2.0 base score of 5.0, rated medium severity.
- Is CVE-2012-1821 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2012-1821?
- CVE-2012-1821 primarily affects Symantec Endpoint Protection. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2012-1821?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2012-1821 published?
- CVE-2012-1821 was published on 2012-05-24 and last updated on 2026-06-16.
References
- http://osvdb.org/82147
- http://secunia.com/advisories/49221
- http://www.kb.cert.org/vuls/id/149070
- http://www.securityfocus.com/bid/50358
- http://www.securitytracker.com/id?1027092
- http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=2012&suid=20120522_00
Affected products (7)
- cpe:2.3:a:symantec:endpoint_protection:11.0.6000:*:*:*:*:*:*:*
- cpe:2.3:a:symantec:endpoint_protection:11.0.6100:*:*:*:*:*:*:*
- cpe:2.3:a:symantec:endpoint_protection:11.0.6200:*:*:*:*:*:*:*
- cpe:2.3:a:symantec:endpoint_protection:11.0.6200.754:*:*:*:*:*:*:*
- cpe:2.3:a:symantec:endpoint_protection:11.0.6300:*:*:*:*:*:*:*
- cpe:2.3:a:symantec:endpoint_protection:11.0.7000:*:*:*:*:*:*:*
- cpe:2.3:a:symantec:endpoint_protection:11.0.7100:*:*:*:*:*:*:*
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