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CVE-2022-47938

Exploitation likely. EPSS gives it a 60% chance of exploitation in the next 30 days. Fixed in 5.19.2.

CVSS 3.16.5MediumEPSS percentile99th60% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix5.19.2Upgrade to this build

Published Updated Sources: CVE.org, NVD, BDU

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • Linux KernelAffected: ≥ 5.15, < 5.19.2Upgrade to: 5.19.2Stated by: NVD
  • ООО «РусБИТех-Астра» Astra Linux Special EditionAffected: 1.6 «Смоленск»Upgrade to: not statedStated by: BDU
  • Red Hat Inc. Red Hat Enterprise LinuxAffected: 8Upgrade to: not statedStated by: BDU
  • Сообщество свободного программного обеспечения Debian GNU/LinuxAffected: 10Upgrade to: not statedStated by: BDU
  • Сообщество свободного программного обеспечения LinuxAffected: от 5.15 до 5.15.60 включительноUpgrade to: not statedStated by: BDU

Versions as the sources state them. 1 more product has version data. Full version matrix after sign-in

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2misc.c has an out-of-bounds read and OOPS for SMB2_TREE_CONNECT.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS99th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

60% chance of exploitation activity in the next 30 days, which ranks it in the 99th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

8 events over 1280 days, from the signal feeds we watch.

  1. OpenVAS check added
  2. EPSS band changemoderate → high
  3. EPSS band changelow → moderate
  4. Patch availablerecord updated
  5. Publishedweakness classified, att&ck mapped

Affected products

And 1 more affected product. See all after sign-in

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Scored 6.5 by NVD.

How it is reached

  • Attack Vector NetworkExploitable remotely over the network without any special conditions
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required LowRequires basic user-level privileges
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality NoneNo confidentiality impact
  • Integrity NoneNo integrity impact
  • Availability HighTotal denial of service — the component is completely unavailable

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

References in the record

And 10 more references. See all after sign-in

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