CVE-2020-5829

Local information disclosure via secars buffer over-read

Published Feb 11, 2020 · Updated Aug 4, 2024

Out-of-bounds read in secars.dll in Symantec Endpoint Protection Manager before 14.2 RU2 MP1 allows local users to disclose memory. The module fails to validate user-supplied data before reading beyond the end of an allocated buffer. Exploitation requires low-privileged code execution on the server and can expose sensitive data or assist chained code execution as the semwebsrv user.

CVSS severity3.3
Low
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in secars.dll in Symantec Endpoint Protection Manager before 14.2 RU2 MP1 allows local users to disclose memory. The module fails to validate user-supplied data before reading beyond the end of an allocated buffer. Exploitation requires low-privileged code execution on the server and can expose sensitive data or assist chained code execution as the semwebsrv user.

The record

CVE
CVE-2020-5829
Published
Feb 11, 2020
Updated
Aug 4, 2024
Vendor
Symantec
Product
Symantec Endpoint Protection Manager
Classifications
CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 11, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Prior to 14.2 RU2 MP1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Symantec · Symantec Endpoint Protection Managerversion=Prior to 14.2 RU2 MP1

Published CVSS scores

3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
2.1NIST NVDAV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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