CVE-2025-26465
CVE-2025-26465: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium6.8
Medium [CVE-2025-26465] machine-in-the-middle attack if verifyhostkeydns is enabled
CVE-2025-26465Source published Source updated
A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how OpenSSH mishandles error codes in specific conditions when verifying the host key. For an attack to be considered successful, the attacker needs to manage to exhaust the client's memory resource first, turning the attack complexity high. This issue is rated as a moderate severity vulnerability instead of important because it requires specific conditions to be exploitable. Additionally, while the attack allows a machine-in-the-middle (MITM) adversary to trick the client into accepting an incorrect host key, it does not directly lead to code execution or immediate system…
- Affected products in this advisory
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9.4 Extended Update Support
- Red Hat Discovery 1.14
- Red Hat Enterprise Linux 6
3 more entries in the full advisory.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- openssh-0:8.0p1-26.el8_10
- openssh-0:8.7p1-45.el9
- openssh-0:8.7p1-38.el9_4.5
- discovery/discovery-server-rhel9:1.14.3-1748529279
4 more entries in the full advisory.
- Mitigation guidance
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Android app · Google Play
Monitor future Red Hat CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.