Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2012-1821

19
FAUCET Score

CVE-2012-1821 describes a denial-of-service vulnerability in the Network Threat Protection module of Symantec Endpoint Protection (SEP) versions 11.0.600x through 11.0.700x when running on Windows Server 2003. An unauthenticated remote attacker can trigger a web-server outage or daemon crash/hang by flooding the system with packets, causing automated network traffic blocking. This vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and potential for partial availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
11.0.6000CPE matchmatch criteria
cpe:2.3:a:symantec:endpoint_protection:11.0.6000:*:*:*:*:*:*:*
11.0.6100CPE matchmatch criteria
cpe:2.3:a:symantec:endpoint_protection:11.0.6100:*:*:*:*:*:*:*
11.0.6200CPE matchmatch criteria
cpe:2.3:a:symantec:endpoint_protection:11.0.6200:*:*:*:*:*:*:*
11.0.6200.754CPE matchmatch criteria
cpe:2.3:a:symantec:endpoint_protection:11.0.6200.754:*:*:*:*:*:*:*
11.0.6300CPE matchmatch criteria
cpe:2.3:a:symantec:endpoint_protection:11.0.6300:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.87%
Probability of exploitation in next 30 days
EPSS Percentile
85.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0287 is in the 79th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

osvdb.org / 82147
secunia.com / advisories/49221
kb.cert.org / vuls/id/149070
securityfocus.com / bid/50358
securitytracker.com / id
symantec.com / security_response/securityupdates/detail.jsp
Vendor Advisory