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CVE-2020-5821

HIGH · CVSS 7.8EPSS 0.4%EU EUVD

Symantec Endpoint Protection (SEP) and Symantec Endpoint Protection Small Business Edition (SEP SBE), prior to 14.2 RU2 MP1 and prior to 14.2.5569.2100 respectively, may be susceptible to a DLL injection vulnerability, which is a type of issue whereby an individual attempts to execute their own code in place of legitimate code as a means to perform an exploit.

Key facts

CVSS score
7.8 (v3.1)
Severity
HIGH
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-427
EPSS score
0.4% (35th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2020-26976)
Published
February 11, 2020
NVD last modified
June 17, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2020-26976 in the EU Vulnerability Database. Last updated in EUVD on August 4, 2024.

View on the EU Vulnerability Database

Affected products

  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection
  • symantec / endpoint protection

and 27 more…

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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