6.5

CVE-2021-40439: apache software foundation apache openoffice

CVSS: 6.5v3.1MediumModified
Published 07-10-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-40439 is a medium (CVSS 6.5) vulnerability in apache software foundation apache openoffice. EPSS estimates a 3.87% chance of exploitation in the next 30 days, higher than 90% of scored vulnerabilities.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
3.87%
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. 07-10-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Apache OpenOffice has a dependency on expat software. Versions prior to 2.1.0 were subject to CVE-2013-0340 a "Billion Laughs" entity expansion denial of service attack and exploit via crafted XML files. ODF files consist of a set of XML files. All versions of Apache OpenOffice up to 4.1.10 are subject to this issue. expat in version 4.1.11 is patched.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

3.87%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

0.00 pp

From 3.87% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.87%

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

Apache1 product
Apache software foundation1 product

2 vendors · 2 products

References

3 links