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No exploitation reportedFix available

CVE-2025-22869

No exploitation reported by the sources we read.

  • Published2025-02-26
  • Fixed in0.35.0
  • WeaknessCWE-770

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

SSH servers which implement file transfer protocols are vulnerable to a denial of service attack from clients which complete the key exchange slowly, or not at all, causing pending content to be read into memory, but never transmitted.

Timeline

dates in UTC
  1. 2025-02-2608:14CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-22869?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-22869?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Go ssh
BranchAffectedFixed in
0.35< 0.35.00.35.0

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • aardvark-dnsAlmaLinux:8all versions · fixed in 2:1.10.1-2.module_el8.10.0+3901+4b80ecd7
  • aardvark-dnsAlmaLinux:8all versions · fixed in 2:1.10.1-2.module_el8.10.0+3909+6e1c1eb7
  • aardvark-dnsAlmaLinux:8all versions · fixed in 2:1.10.1-2.module_el8.10.0+4016+efd18bf8
  • buildahAlmaLinux:8all versions · fixed in 2:1.33.12-1.module_el8.10.0+3959+b8dc5e6aand 1 other package
  • buildahAlmaLinux:8all versions · fixed in 2:1.33.12-1.module_el8.10.0+3970+8445edf6and 1 other package
  • cockpit-podmanAlmaLinux:8all versions · fixed in 84.1-1.module_el8.10.0+4016+efd18bf8
  • conmonAlmaLinux:8all versions · fixed in 3:2.1.10-1.module_el8.10.0+3970+8445edf6
  • container-selinuxAlmaLinux:8all versions · fixed in 2:2.229.0-2.module_el8.10.0+3909+6e1c1eb7

56 more package ranges on OSV.dev

Vendor advisories

  • CVE-2025-22869 Red Hat Product Security2,839 products fixed · 65 known affected

    golang.org/x/crypto/ssh: Denial of Service in the Key Exchange of golang.org/x/crypto/ssh

    rhai-tech-preview/assisted-installer-reporter-rhel8 as a component of Assisted Installer for Red Hat OpenShift Container Platform 2 · rhai-tech-preview/assisted-installer-rhel8 as a component of Assisted Installer for Red Hat OpenShift Container Platform 2 · cert-manager/jetstack-cert-manager-acmesolver-rhel9 as a component of cert-manager Operator for Red Hat OpenShift · +62 more

  • RHSA-2026:3718 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Red Hat OpenShift Pipelines Release 1.15.4

  • RHSA-2026:3462 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat AI Inference Server 3.2.2 (ROCm)

  • RHSA-2026:3461 Red Hat Product Security2 products fixed

    Red Hat Security Advisory: Red Hat AI Inference Server 3.2.2 (CUDA)

  • RHSA-2025:23449 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat AI Inference Server 3.2.5 (ROCm)

  • RHSA-2025:23209 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat AI Inference Server 3.2.5 (TPU)

68 more advisories

Full record on NVD

Fix

  1. Update Go ssh to 0.35.0
  2. Vendor fix Red Hat Product Security RHSA-2026:3718 · 4 productsRed Hat OpenShift Pipelines is a cloud-native, continuous integration and continuous delivery (CI/CD) solution based on Kubernetes resources. It uses Tekton building blocks to automate deployments across multiple platforms by abstracting away the underlying implementation details. Tekton introduces…
  3. Vendor fix Red Hat Product Security RHSA-2026:3462 · 1 productFor more information visit https://access.redhat.com/errata/RHSA-2026:3462
  4. Vendor fix Red Hat Product Security RHSA-2026:3461 · 2 productsFor more information visit https://access.redhat.com/errata/RHSA-2026:3461
  5. Vendor fix Red Hat Product Security RHSA-2025:23449 · 1 productFor more information visit https://access.redhat.com/errata/RHSA-2025:23449
  6. Vendor fix Red Hat Product Security RHSA-2025:23209 · 1 productFor more information visit https://access.redhat.com/errata/RHSA-2025:23209
  7. Vendor fix Red Hat Product Security RHSA-2025:23205 · 1 productFor more information visit https://access.redhat.com/errata/RHSA-2025:23205

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2025-02-26
Last Modified
2026-06-17
NVD status
Analyzed

Frequently asked questions

What is CVE-2025-22869?

SSH servers which implement file transfer protocols are vulnerable to a denial of service attack from clients which complete the key exchange slowly, or not at all, causing pending content to be read into memory, but never transmitted.

Is CVE-2025-22869 actively exploited?

Active exploitation of CVE-2025-22869 has not been confirmed. Its EPSS score was 0.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-22869?

CVE-2025-22869 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Running golang.org/x/crypto/ssh? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

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