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No exploitation reportedFix available

CVE-2022-27191

No exploitation reported by the sources we read.

  • Published2022-03-18

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

The golang.org/x/crypto/ssh package before 0.0.0-20220314234659-1baeb1ce4c0b for Go allows an attacker to crash a server in certain circumstances involving AddHostKey.

Timeline

dates in UTC
  1. 2022-03-1807:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 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-2022-27191?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-27191?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Fedoraproject fedora
BranchAffectedFixed in
34.x= 34no fix published
35.x= 35no fix published
36.x= 36no fix published
Fedoraproject extra packages for enterprise linux
BranchAffectedFixed in
8.0= 8.0no fix published
Golang ssh
BranchAffectedFixed in
0.0< 0.0.0-20220314234659-1baeb1ce4c0b0.0.0-20220314234659-1baeb1ce4c0b

1 more product in the sources.

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.

Vendor advisories

  • RHSA-2026:79243 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: Red Hat Ceph Storage

  • RHSA-2023:4488 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat OpenShift support for Windows Containers 6.0.1[security update]

  • RHSA-2023:3943 Red Hat Product Security3 products fixed

    Red Hat Security Advisory: ACS 4.1 enhancement and security update

  • RHSA-2023:3366 Red Hat Product Security12 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.13.2 packages and security update

  • RHSA-2023:1325 Red Hat Product Security12 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.13.0 security update

  • RHSA-2023:1326 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.13.0 security update

8 more advisories

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2026:79243 · 4 productsThe container images provided by this update can be downloaded from the Red Hat container registry at registry.redhat.io using the "podman pull" command.
  2. Vendor fix Red Hat Product Security RHSA-2023:4488 · 1 productBefore applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  3. Vendor fix Red Hat Product Security RHSA-2023:3943 · 3 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  4. Vendor fix Red Hat Product Security RHSA-2023:3366 · 12 productsFor OpenShift Container Platform 4.13 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.13/release_notes/ocp-4-1…
  5. Vendor fix Red Hat Product Security RHSA-2022:9096 · 1 productFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258
  6. Vendor fix Red Hat Product Security RHSA-2022:8938 · 108 productsSee the Red Hat OpenShift Container Platform 4.8 documentation at: https://access.redhat.com/documentation/en-us/openshift_container_platform/4.8/html/serverless/index See the Red Hat OpenShift Container Platform 4.9 documentation at: https://access.redhat.com/documentation/en-us/openshift_containe…

Detection

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

Sources

  • NVDCVSS 3.17.5read 2026-10-23
  • NVDCVSS 2.04.3read 2026-10-23
  • FIRST EPSSEPSS score3.9 %2026-10-22

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
2022-03-18
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2022-27191?

The golang.org/x/crypto/ssh package before 0.0.0-20220314234659-1baeb1ce4c0b for Go allows an attacker to crash a server in certain circumstances involving AddHostKey.

Is CVE-2022-27191 actively exploited?

Active exploitation of CVE-2022-27191 has not been confirmed. Its EPSS score was 3.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-27191?

CVE-2022-27191 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.

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