CVE-2025-54351

In iperf before 3.19.1, net.c has a buffer overflow when --skip-rx-copy is used (for MSG_TRUNC in recv).

CVE-2025-54351 is fixed in iperf on 1 platform, first by SUSE-SU-2025:02749-1, released August 11, 2025. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

8.9

No vendor severity

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0047

40th percentile

Fixed buffer overflow in net.c (bsc#1247522)

Where it's fixed

Product	Fixed in	Fix	Released
Linux
iperf · opensuse-leap 15.6	3.19.1-150000.3.15.1	SUSE-SU-2025:02749-1	Aug 11, 2025
iperf · sles 15.6	3.19.1-150000.3.15.1	SUSE-SU-2025:02749-1	Aug 11, 2025
iperf · sles 15.7	3.19.1-150000.3.15.1	SUSE-SU-2025:02749-1	Aug 11, 2025

Details

Published
August 11, 2025
Weakness
Unprotected Alternate Channel
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54351

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