How severe is CVE-2021-38441?

CVE-2021-38441 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.

Is CVE-2021-38441 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-38441?

CVE-2021-38441 affects Eclipse Cyclonedds. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-38441?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-38441 published?

CVE-2021-38441 was published on 2022-05-05 and last updated on 2026-06-17.

CVE-2021-38441

CVE-2021-38441 is a medium-severity vulnerability in Eclipse Cyclonedds with a CVSS 3.x base score of 6.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-123.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
CVSS v2: 7.5
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-123
Affected product: Eclipse Cyclonedds
Published: 2022-05-05
Last modified: 2026-06-17

Description

Eclipse CycloneDDS versions prior to 0.8.0 are vulnerable to a write-what-where condition, which may allow an attacker to write arbitrary values in the XML parser.

Frequently asked questions

What is CVE-2021-38441?: Eclipse CycloneDDS versions prior to 0.8.0 are vulnerable to a write-what-where condition, which may allow an attacker to write arbitrary values in the XML parser.
How severe is CVE-2021-38441?: CVE-2021-38441 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability high.
Is CVE-2021-38441 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-38441?: CVE-2021-38441 affects Eclipse Cyclonedds. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-38441?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-38441 published?: CVE-2021-38441 was published on 2022-05-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:eclipse:cyclonedds:*:*:*:*:*:*:*:*

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