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No exploitation reportedFix available

CVE-2021-31845

No exploitation reported by the sources we read.

  • Published2021-09-17
  • Fixed in11.7.100 · 11.6.100
  • WeaknessCWE-120

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A buffer overflow vulnerability in McAfee Data Loss Prevention (DLP) Discover prior to 11.6.100 allows an attacker in the same network as the DLP Discover to execute arbitrary code through placing carefully constructed Ami Pro (.sam) files onto a machine and having DLP Discover scan it, leading to remote code execution with elevated privileges. This is caused by the destination buffer being of fixed size and incorrect checks being made on the source size.

Timeline

dates in UTC
  1. 2021-09-1714:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-31845?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-31845?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Mcafee data loss prevention discover
BranchAffectedFixed in
11.7≥ 11.7.0, < 11.7.10011.7.100
11.6< 11.6.10011.6.100

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Mcafee data loss prevention discover to 11.7.100 · 11.6.100

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CNACVSS 3.18.4read 2026-10-23
  • NVDCVSS 3.17.3read 2026-10-23
  • NVDCVSS 2.06read 2026-10-23
  • CNAweakness (CWE)CWE-120read 2026-10-23
  • NVDweakness (CWE)CWE-120read 2026-10-23
  • FIRST EPSSEPSS score1.1 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Published
2021-09-17
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2021-31845?

A buffer overflow vulnerability in McAfee Data Loss Prevention (DLP) Discover prior to 11.6.100 allows an attacker in the same network as the DLP Discover to execute arbitrary code through placing carefully constructed Ami Pro (.sam) files onto a machine and having DLP Discover scan it, leading to remote code execution with elevated privileges. This is caused by the destination buffer being of fixed size and incorrect checks being made on the source size.

Is CVE-2021-31845 actively exploited?

Active exploitation of CVE-2021-31845 has not been confirmed. Its EPSS score was 1.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-31845?

CVE-2021-31845 has a CVSS v3 base score of 7.3 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

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