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Fencer Vulns
medium 5.9

CVE-2024-26306 json

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…

published 2024-05-13 2 y ago modified 2026-07-18 3 mo ago also EUVD-2024-23577 , JLSEC-2026-761

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits
0
none known

Summary

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.

Patch / fix

  • julia iperf_jll 3.21.0+0
  • es iperf3 3.17
  • iperf3 Debian 14, Debian 13 3.17.1-1

debian advisories DEBIAN-CVE-2024-26306

  • iperf3 Ubuntu 22.04 LTS 3.9-1+deb11u1ubuntu0.1
  • iperf3 Ubuntu Pro 20.04 LTS 3.7-3ubuntu0.1~esm2
  • iperf3 Ubuntu Pro 24.04 LTS 3.16-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2024-26306

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • iperf3 RHEL 9 3.9-13.el9
  • iperf3 RHEL 8 3.5-10.el8_10

red hat advisories RHSA-2024:9185RHSA-2024:4241

  • iperf SLE Module for Package Hub 15 SP6, SLE Module for Package Hub 15 SP5, openSUSE Leap 15.6 +2 more 3.17.1-150000.3.9.1

suse advisories SUSE-SU-2024:1981-1

  • iperf3 AlmaLinux 9 3.9-13.el9
  • iperf3 AlmaLinux 8 3.5-10.el8_10

almalinux advisories ALSA-2024:9185ALSA-2024:4241

  • iperf3 Rocky Linux 8 3.5-10.el8_10
  • iperf3 Rocky Linux 9 3.9-13.el9_5.1

rocky linux advisories RLSA-2024:4241RLSA-2024:9185

  • iperf3 Azure Linux 3.0 3.17.1-1
  • iperf3 CBL-Mariner 2.0 3.17-1

azure linux advisories AZL-40537AZL-40658

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-26306 updated cvss 5.9

iperf3: vulnerable to marvin attack if the authentication option is used

  • Red Hat Enterprise Linux 7 iperf3
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) iperf3 3.5-10.el8_10
    fixed: vendor fix RHSA-2024:4241
  • Red Hat Enterprise Linux AppStream (v. 9) iperf3 3.9-13.el9
    fixed: vendor fix RHSA-2024:9185

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-24-319-06 updated cvss 5.9

Siemens SCALANCE M-800 Family

  • Siemens RUGGEDCOM RM1224 LTE(4G) EU (6GK6108-4AM00-2BA2) <V8.2 Siemens RUGGEDCOM RM1224 LTE(4G) NAM (6GK6108-4AM00-2DA2) <V8.2 Siemens SCALANCE M804PB (6GK5804-0AP00-2AA2) <V8.2 Siemens SCALANCE M812-1 ADSL-Router (6GK5812-1AA00-2AA2) <V8.2 Siemens SCALANCE M812-1 ADSL-Router (6GK5812-1BA00-2AA2) <V8.2 Siemens SCALANCE M816-1 ADSL-Router (6GK5816-1AA00-2AA2) <V8.2
    +20 more products
    Siemens SCALANCE M816-1 ADSL-Router (6GK5816-1BA00-2AA2) <V8.2 Siemens SCALANCE M826-2 SHDSL-Router (6GK5826-2AB00-2AB2) <V8.2 Siemens SCALANCE M874-2 (6GK5874-2AA00-2AA2) <V8.2 Siemens SCALANCE M874-3 (6GK5874-3AA00-2AA2) <V8.2 Siemens SCALANCE M874-3 3G-Router (CN) (6GK5874-3AA00-2FA2) <V8.2 Siemens SCALANCE M876-3 (6GK5876-3AA02-2BA2) <V8.2 Siemens SCALANCE M876-3 (ROK) (6GK5876-3AA02-2EA2) <V8.2 Siemens SCALANCE M876-4 (6GK5876-4AA10-2BA2) <V8.2 Siemens SCALANCE M876-4 (EU) (6GK5876-4AA00-2BA2) <V8.2 Siemens SCALANCE M876-4 (NAM) (6GK5876-4AA00-2DA2) <V8.2 Siemens SCALANCE MUM853-1 (A1) (6GK5853-2EA10-2AA1) <V8.2 Siemens SCALANCE MUM853-1 (B1) (6GK5853-2EA10-2BA1) <V8.2 Siemens SCALANCE MUM853-1 (EU) (6GK5853-2EA00-2DA1) <V8.2 Siemens SCALANCE MUM856-1 (A1) (6GK5856-2EA10-3AA1) <V8.2 Siemens SCALANCE MUM856-1 (B1) (6GK5856-2EA10-3BA1) <V8.2 Siemens SCALANCE MUM856-1 (CN) (6GK5856-2EA00-3FA1) <V8.2 Siemens SCALANCE MUM856-1 (EU) (6GK5856-2EA00-3DA1) <V8.2 Siemens SCALANCE MUM856-1 (RoW) (6GK5856-2EA00-3AA1) <V8.2 Siemens SCALANCE S615 EEC LAN-Router (6GK5615-0AA01-2AA2) <V8.2 Siemens SCALANCE S615 LAN-Router (6GK5615-0AA00-2AA2) <V8.2
    affected: fixed in V8.2 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-25-044-09 updated cvss 5.9

Siemens SCALANCE W700 IEEE 802.11ax

  • Siemens SCALANCE WAB762-1 (6GK5762-1AJ00-6AA0) <V3.0.0 Siemens SCALANCE WAM763-1 (6GK5763-1AL00-7DA0) <V3.0.0 Siemens SCALANCE WAM763-1 (ME) (6GK5763-1AL00-7DC0) <V3.0.0 Siemens SCALANCE WAM763-1 (US) (6GK5763-1AL00-7DB0) <V3.0.0 Siemens SCALANCE WAM766-1 (6GK5766-1GE00-7DA0) <V3.0.0 Siemens SCALANCE WAM766-1 (ME) (6GK5766-1GE00-7DC0) <V3.0.0
    +13 more products
    Siemens SCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0) <V3.0.0 Siemens SCALANCE WAM766-1 EEC (6GK5766-1GE00-7TA0) <V3.0.0 Siemens SCALANCE WAM766-1 EEC (ME) (6GK5766-1GE00-7TC0) <V3.0.0 Siemens SCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0) <V3.0.0 Siemens SCALANCE WUB762-1 (6GK5762-1AJ00-1AA0) <V3.0.0 Siemens SCALANCE WUB762-1 iFeatures (6GK5762-1AJ00-2AA0) <V3.0.0 Siemens SCALANCE WUM763-1 (6GK5763-1AL00-3AA0) <V3.0.0 Siemens SCALANCE WUM763-1 (6GK5763-1AL00-3DA0) <V3.0.0 Siemens SCALANCE WUM763-1 (US) (6GK5763-1AL00-3AB0) <V3.0.0 Siemens SCALANCE WUM763-1 (US) (6GK5763-1AL00-3DB0) <V3.0.0 Siemens SCALANCE WUM766-1 (6GK5766-1GE00-3DA0) <V3.0.0 Siemens SCALANCE WUM766-1 (ME) (6GK5766-1GE00-3DC0) <V3.0.0 Siemens SCALANCE WUM766-1 (USA) (6GK5766-1GE00-3DB0) <V3.0.0
    affected: fixed in V3.0.0 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

1.10% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
OSV 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
julia iperf_jll
<3.21.0+0
3.21.0+0

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.