PatchTheCVECVE-2024-26306: iPerf3 before 3.17, when used with OpenSSL before 3.2.0 as a server with RSA authentication, allows a timing s
CVE-2024-26306 is a medium-severity flaw (CVSS 5.9) affecting iperf3, bootstrap os. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
iPerf3 before 3.17, when used with OpenSSL before 3.2.0 as a server with RSA authentication, allows a timing side channel in RSA decryption operations. This side channel could be sufficient for an attacker to recover credential plaintext. It requires the attacker to send a large number of messages for decryption, as described in "Everlasting ROBOT: the Marvin Attack" by Hubert Kario.
Why this priority
- Remotely exploitable, no login, no user action
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.9 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.1% (top 34%) |
| CISA exploited list | No |
| Weakness | CWE-385 |
| Published | 2024-05-14 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2024-26306?
iperf3: upgrade to 3.17; bootstrap os: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2024-26306 being exploited?
CVE-2024-26306 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2024-26306 affect?
CVE-2024-26306 affects iperf3, bootstrap os. Severity is medium (CVSS 5.9). iPerf3 before 3.17, when used with OpenSSL before 3.2.0 as a server with RSA authentication, allows a timing side channel in RSA decryption operations. This side channel could be sufficient for an attacker to recover credential plaintext. I
How urgent is CVE-2024-26306?
Priority 47/100. Remotely exploitable, no login, no user action; On your watchlist
Software pages
OpenSSL vulnerabilities · Bootstrap vulnerabilities
Related CVEs
- CVE-2024-53580 HIGH 7.5 DOWNGRADE MITIGATE iperf v3.17.1 was discovered to contain a segmentation violation via the iperf_exchange_parameters() function.
- CVE-2023-7250 MEDIUM 5.3 UPGRADE MITIGATE A flaw was found in iperf, a utility for testing network performance using TCP, UDP, and SCTP
- CVE-2023-38403 HIGH 7.5 UPGRADE MITIGATE iperf3 before 3.14 allows peers to cause an integer overflow and heap corruption via a crafted length field.