iperf-3.19.1 2025-07-25

• Notable user-visible changes

  • SECURITY NOTE: Thanks to Han Lee with Apple Information Security for finding and reporting several memory errors including a buffer overflow within the --skip-rx-copy option, and two memory errors within authentication, including a heap overflow in the plaintext password and an assert.

  • An off-by-one heap overflow has been fixed in authentication. (CVE-2025-54349, ESNET-SECADV-2025-0003)

  • An assert in authentication has been removed. (CVE-2025-54350, ESNET-SECADV-2025-0002)

  • A buffer overflow in the --skip-rx-copy option for zerocopy has been fixed. (CVE-2025-54351, ESNET-SECADV-2025-0001)