Is CVE-2025-54350 in the CISA KEV catalog?

No. CVE-2025-54350 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-54350?

CVE-2025-54350 has a CVSS v3 base score of 3.7 (LOW).

What is the EPSS score for CVE-2025-54350?

CVE-2025-54350 has an EPSS score of 0.40% (32th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-54350?

Upgrade iperf3 on debian 11 to 3.9-1+deb11u3 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2025-54350

LOW

3.7

CVSS v3

NVD

Description

In iperf before 3.19.1, iperf_auth.c has a Base64Decode assertion failure and application exit upon a malformed authentication attempt.

CWE-617

How to fix

Remediation Available

iperf3Debian

Fixed in:3.9-1+deb11u3CVE-2025-54350

Fixed in:3.12-1+deb12u2CVE-2025-54350

Fixed in:3.18-2+deb13u1CVE-2025-54350

Fixed in:3.19.1-1CVE-2025-54350

iperf3Ubuntu

Fixed in:3.7-3ubuntu0.1~esm2USN-7970-1

Fixed in:3.9-1+deb11u1ubuntu0.1USN-7970-1

Fixed in:3.16-1ubuntu0.1~esm1USN-7970-1

Fixed in:3.18-2ubuntu0.1USN-7970-1

libiperf0Ubuntu

Fixed in:3.7-3ubuntu0.1~esm2USN-7970-1

Fixed in:3.9-1+deb11u1ubuntu0.1USN-7970-1

Fixed in:3.16-1ubuntu0.1~esm1USN-7970-1

Fixed in:3.18-2ubuntu0.1USN-7970-1

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 ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

0.40%probability of exploitation in 30 days

32ndpercentile

Low risk: more likely to be exploited than 32% of all known CVEs.

References

Patch1

github.com

Release Notes1

github.com

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-617 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-8617	High	7.5	93%	-	Fix
CVE-2020-36222	High	7.5	78%	-	Fix
CVE-2006-5779	High	7.5	75%	-	Fix
CVE-2021-27212	High	7.5	64%	-	Fix
CVE-2018-5740	High	7.5	59%	-	Fix
CVE-2023-28425	Medium	5.5	55%	-	Fix

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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 2025-11-03.