Red Hat Security Advisory: iperf3 security update
Iperf is a tool which can measure maximum TCP bandwidth and tune various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, and data-gram loss. Security Fix(es): * iperf3: iperf Heap Buffer Overflow (CVE-2025-54349) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
The vulnerability CVE-2025-54349 is a heap buffer overflow in iperf3, a network performance measurement tool. This flaw could potentially lead to memory corruption. Red Hat has issued a security advisory (RHSA-2026:1592) describing this issue and providing updated iperf3 packages for Red Hat Enterprise Linux 8 and its Extended Life Cycle 8.10 variants on multiple architectures. The advisory rates the impact as moderate and directs users to apply the provided update to fix the issue.
Potential Impact
The heap buffer overflow vulnerability in iperf3 could allow an attacker to cause memory corruption, which might lead to application crashes or potentially other unintended behavior. The advisory rates the security impact as moderate. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released updated iperf3 packages (version 3.5-12.el8_10) that fix the heap buffer overflow vulnerability. Users running affected versions of Red Hat Enterprise Linux 8 and Extended Life Cycle 8.10 should apply the update as described in Red Hat advisory RHSA-2026:1592. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: iperf3 security update
Description
Iperf is a tool which can measure maximum TCP bandwidth and tune various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, and data-gram loss. Security Fix(es): * iperf3: iperf Heap Buffer Overflow (CVE-2025-54349) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2025-54349 is a heap buffer overflow in iperf3, a network performance measurement tool. This flaw could potentially lead to memory corruption. Red Hat has issued a security advisory (RHSA-2026:1592) describing this issue and providing updated iperf3 packages for Red Hat Enterprise Linux 8 and its Extended Life Cycle 8.10 variants on multiple architectures. The advisory rates the impact as moderate and directs users to apply the provided update to fix the issue.
Potential Impact
The heap buffer overflow vulnerability in iperf3 could allow an attacker to cause memory corruption, which might lead to application crashes or potentially other unintended behavior. The advisory rates the security impact as moderate. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released updated iperf3 packages (version 3.5-12.el8_10) that fix the heap buffer overflow vulnerability. Users running affected versions of Red Hat Enterprise Linux 8 and Extended Life Cycle 8.10 should apply the update as described in Red Hat advisory RHSA-2026:1592. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:2449
- Cve Count
- 1
Threat ID: 6a1f4e86e29bf47b5007efb5
Added to database: 06/02/2026, 21:43:34 UTC
Last enriched: 07/12/2026, 11:04:42 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 91
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