9.8

CVE-2021-38443: eclipse cyclonedds

CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2021-38443DEBIAN-CVE-2021-38443
Published 05-05-2022Last modified 16-04-2025
Open JSON

Vulnerability summary

CVE-2021-38443 is a critical (CVSS 9.8) vulnerability in eclipse cyclonedds. EPSS estimates a 2.13% chance of exploitation in the next 30 days, higher than 81.6% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
2.13%
0%100%
Low · -0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 05-05-2022
    PublishedVulnerability first disclosed.
  2. 16-04-2025
    Last modifiedVulnerability information updated.

Description

Eclipse CycloneDDS versions prior to 0.8.0 improperly handle invalid structures, which may allow an attacker to write arbitrary values in the XML parser.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

2.13%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

-0.03 pp

From 2.15% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.13%

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

Debian1 product
  • cyclonedds< 0.8.1-2
Eclipse1 product
Ubuntu1 product
  • cycloneddsAll versions (No fix recorded)

3 vendors · 3 products

References

5 links