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Vulnerabilities/CVE-2022-2586Public Intelligence Dossier
Source: siemens · Limited verification•Last verified: •Collection Degraded
CVE-2022-2586ListedHIGH (raw)CVSS 7.8CWE-416

It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table was deleted.

Published: 08 Jan 2024•Last updated: 14 Oct 2026, 11:55 PM IST•Source identifier: security@ubuntu.com
Dossier completeness: source-provided sections 3 / 3 · rule guidance available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Listed
Added26 Jun 2024
Due17 Jul 2024
RansomwareUnknown
CVSS score
7.8HIGH (raw)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Metric sourcenvd@nist.gov
EPSS probability
10.2%0.102
Percentile96th
Weakness type
CWE-416
No further CWE recorded
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table was deleted.

SOC priority

Immediate Attention

Actively exploited

Yes

Publicly disclosed

Unknown

Risk basis: CISA KEV exploitation signal; SOC ecosystem technology relevance; HIGH severity; Known exploitation signal from CISA KEV or ransomware metadata

Affected Products & Remediation

4 source-backed products
Affected products and versions (source)
  • siemens simatic s7-1500 tm mfp firmware · < 1.1 · NVD CPE · Source
  • siemens sinec os · < 2.4 · NVD CPE · Source
  • linux linux kernel · >= 3.16 < 4.14.316; >= 4.15 < 4.19.256; >= 4.20 < 5.4.211; >= 5.5 < 5.10.137; >= 5.11 < 5.15.61; >= 5.16 < 5.18.18; >= 5.19 < 5.19.2 · NVD CPE · Source
  • canonical ubuntu linux · 14.04; 16.04; 18.04; 20.04; 22.04 · NVD CPE · Source
NVD applicability prerequisites: cpe:2.3:h:siemens:simatic_s7-1500_tm_mfp:-:*:*:*:*:*:*:*, cpe:2.3:h:siemens:scalance_xch328:-:*:*:*:*:*:*:*, cpe:2.3:h:siemens:scalance_xcm324:-:*:*:*:*:*:*:*, cpe:2.3:h:siemens:scalance_xcm328:-:*:*:*:*:*:*:*, cpe:2.3:h:siemens:scalance_xcm332:-:*:*:*:*:*:*:*, cpe:2.3:h:siemens:scalance_xrh334:-:*:*:*:*:*:*:*, cpe:2.3:h:siemens:scalance_xrm334:-:*:*:*:*:*:*:*. These are conditions, not proof that an environment is exposed or unaffected.
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

  • CISA KEV: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Known exploitation (source facts)

Only what a source states. Unknown means no source has said either way; it is not "not exploited".

CISA KEV
Listed
Exploited (source statement)
Yes
Publicly disclosed (source)
Unknown

CISA required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Suggested hunting (rule-based inference)

SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.

Matched local-privilege-escalation (CVSS AV:L, CVSS PR:L)

Exposure

  1. Identify hosts reporting this CVE, prioritising shared or multi-user systems.Telemetry: DeviceTvmSoftwareVulnerabilities · A local, low-privilege vector matters most where untrusted users can run code. · Rule local-privilege-escalation

Exploitation evidence

  1. Look for low-privileged processes spawning SYSTEM or root-level child processes on affected hosts.Telemetry: DeviceProcessEvents · Hunting hypothesis from the CVSS vector; privilege transitions are a focused starting point, not evidence of attack. · Rule local-privilege-escalation

Response

  1. Confirm the source-stated update on affected hosts.Telemetry: DeviceTvmSoftwareVulnerabilities · Host inventory can verify remediation. · Rule local-privilege-escalation

CISA KEV Record

Catalog entry
26 Jun 2024
Required action due
17 Jul 2024
Known ransomware use
Unknown

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Change History & Source Data

— No recorded material change

CNA / source
security@ubuntu.com
Record status · verification
UPDATED · CISA KEV confirmed
CPE
cpe:2.3:o:siemens:simatic_s7-1500_tm_mfp_firmware:*:*:*:*:*:*:*:*, cpe:2.3:h:siemens:simatic_s7-1500_tm_mfp:-:*:*:*:*:*:*:*, cpe:2.3:o:siemens:sinec_os:*:*:*:*:*:*:*:*, cpe:2.3:h:siemens:scalance_xch328:-:*:*:*:*:*:*:*, cpe:2.3:h:siemens:scalance_xcm324:-:*:*:*:*:*:*:*, cpe:2.3:h:siemens:scalance_xcm328:-:*:*:*:*:*:*:*, cpe:2.3:h:siemens:scalance_xcm332:-:*:*:*:*:*:*:*, cpe:2.3:h:siemens:scalance_xrh334:-:*:*:*:*:*:*:*, cpe:2.3:h:siemens:scalance_xrm334:-:*:*:*:*:*:*:*, cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Evidence & Provenance

4 public sources
CISA KEV CatalogAdded 2024-06-26lore.kernel.orgSource recordnvd.nist.govSource recordcve.mitre.orgSource record

Linked by the query's stored exact CVE association. Review required tables and validation status before use.

Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2022-2586
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2022-2586
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2022-2586"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel desc
Schema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
Open KQL Library

Correlated briefings

— No published briefing references this CVE

SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.