Is CVE-2021-38425 in the CISA KEV catalog?

No. CVE-2021-38425 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-38425?

CVE-2021-38425 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-38425?

CVE-2021-38425 has an EPSS score of 5.24% (91th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-38425?

Upgrade fastdds on debian 11 to 2.1.0+ds-9+deb11u1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2021-38425

HIGHEPSS 91th pctl

7.5

CVSS v3

NVD

Description

eProsima Fast DDS versions prior to 2.4.0 (#2269) are susceptible to exploitation when an attacker sends a specially crafted packet to flood a target device with unwanted traffic, which may result in a denial-of-service condition and information exposure.

CWE-406

How to fix

Remediation Available

fastddsDebian

Fixed in:2.1.0+ds-9+deb11u1CVE-2021-38425

Fixed in:2.6.1+ds-1CVE-2021-38425

fastddsUbuntu

Fixed in:2.5.0+ds-3ubuntu0.1~esm1USN-6306-1

Fixed in:2.9.1+ds-1ubuntu0.1USN-6306-1

fastdds-toolsUbuntu

Fixed in:2.5.0+ds-3ubuntu0.1~esm1USN-6306-1

Fixed in:2.9.1+ds-1ubuntu0.1USN-6306-1

libfastrtps2.5Ubuntu

Fixed in:2.5.0+ds-3ubuntu0.1~esm1USN-6306-1

libfastrtps2.9Ubuntu

Fixed in:2.9.1+ds-1ubuntu0.1USN-6306-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

5.24%probability of exploitation in 30 days

91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Third-Party Advisory2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.