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CVE-2025-26465

Openssh: machine-in-the-middle attack if verifyhostkeydns is enabled

Published: Feb 18, 2025Updated: May 12, 2026 Sources: CVE List NVD BDU csafCWE-390
NVD MITRE
6.8CVSSMEDIUM
EPSS Score
7.0%
Top 6.7%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version V3.1.5 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). Siemens is preparing fix versions and recommends countermeasures for products where fixes are not, or not yet available.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:UC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-390

Affected Products

Red Hat Enterprise Linux 8Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 9Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat
On-premOS
Operating Systems / linux-distro
Red Hat Discovery 1.14Red Hat
On-prem
Operating Systems / linux-distro
red hatcommercialUSOperating Systemsaka red hat
and 35 more affected products View all →

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
Workaround Available

References

https://cert-portal.siemens.com/productcert/csaf/ssa-082556.json
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
cert-portal.siemens.com
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2025/icsa-25-162-05.json
raw.githubusercontent.com
and 290 more references View all →

Timeline

Published
Feb 18, 2025
Last Updated
May 12, 2026

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