5.5

CVE-2021-31842: mcafee endpoint_security XML Entity Expansion

CVSS: 5.5v3.1MediumModified
Published 17-09-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-31842 is a medium (CVSS 5.5) XML Entity Expansion vulnerability in mcafee endpoint_security. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 12.4% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.23%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 17-09-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

XML Entity Expansion injection vulnerability in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 September 2021 Update allows a local user to initiate high CPU and memory consumption resulting in a Denial of Service attack through carefully editing the EPDeploy.xml file and then executing the setup process.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

0.00 pp

From 0.23% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.23%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Mcafee1 product
  • endpoint_security< 10.7.0 | 10.7.0:april_2020 | 10.7.0:april_2021 | 10.7.0:february_2020 | 10.7.0:february_2021 | 10.7.0:july_2020 | 10.7.0:june_2021 | 10.7.0:november_2020 | 10.7.0:september_2020
Mcafee,llc1 product

2 vendors · 2 products

References

1 links