Heap-based Buffer Overflow in Iperf Affected by Off-by-One Error
CVE-2025-54349

10CRITICAL

Key Information:

Vendor

Es

Status
Iperf3
Vendor
CVE Published:
3 August 2025

What is CVE-2025-54349?

The off-by-one error present in iperf prior to version 3.19.1 can lead to a heap-based buffer overflow. This vulnerability allows attackers to manipulate memory allocation and potentially execute arbitrary code, compromising the integrity and security of the affected systems. Users are urged to update to the latest version to mitigate this risk effectively.

Affected Version(s)

iperf3 0 < 3.19.1

References

https://github.com/esnet/iperf/commit/4e5313bab0b9b3fe035...
https://github.com/esnet/iperf/releases/tag/3.19.1

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

.