CVE-2024-26306

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.

Published: 2024-05-14 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-26306 is rated Moderate Risk (51.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.12%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-26306

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-01 0.65% 1.12% +0.47%
2 2025-11-21 0.36% 0.65% +0.28%
3 2025-11-18 — 0.36% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-26306

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.2 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-26306

OS Trackers for CVE-2024-26306

vendor priority summary link
alpine — CVE-2024-26306: 1 source package rows (iperf3); 1 state rows across 1 repos (3.19-main); fixed 0, open 1. https://security.alpinelinux.org/vuln/CVE-2024-26306
debian not yet assigned CVE-2024-26306 not yet assigned priority: Debian including 1 source packages (iperf3), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. https://security-tracker.debian.org/tracker/CVE-2024-26306
redhat medium — https://access.redhat.com/security/cve/CVE-2024-26306
suse medium CVE-2024-26306 severity moderate: SUSE including 13 source package names (findutils-4.9.0-slfo.1.1_2.1, iperf-3.17.1-1.1, …), 55 product×package rows across 38 product lines (Container suse/sl-micro/6.0/baremetal-os-container, Container suse/sl-micro/6.0/base-os-container, … (38 product lines)): Fixed 55. https://www.suse.com/security/cve/CVE-2024-26306/
ubuntu medium CVE-2024-26306 medium priority: Ubuntu including 1 source packages (iperf3), 10 status rows across 10 suites (bionic, focal, jammy, mantic, noble, oracular, plucky, questing, upstream, xenial): ignored 5, released 4, not-affected 1. https://ubuntu.com/security/CVE-2024-26306

Affected software / configurations for CVE-2024-26306

Vendor Product Version Raw CPE
es iperf3 < 3.17 cpe:2.3:a:es:iperf3:*:*:*:*:*:*:*:*
netapp bootstrap_os — cpe:2.3:o:netapp:bootstrap_os:-:*:*:*:*:*:*:*

References for CVE-2024-26306

cvelogic Threat Intelligence