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CVE-2022-2590

Status: ModifiedHigh (7)—PoC
Severity7High · CVSS 3.1
Exploitation probability0.90 %higher than 59% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitAvailableProof of concept on GitHub (unverified)

A race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write (COW) breakage of private read-only shared memory mappings. This flaw allows an unprivileged, local user to gain write access to read-only memory mappings, increasing their privileges on the system.

CVSS

Base score
7
Version
3.1
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.90 %
Percentile among all scored CVEs
59
Score date
10/20/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.

Affected technologies (1)

Linux — Linux Kernel

CWEs

References

Show 4 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2022-2590",
  "cveTags": [],
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        "source": "nvd@nist.gov",
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          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
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  "published": "2022-08-31T16:15:11.227",
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      "tags": [
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  ],
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      "source": "secalert@redhat.com",
      "description": [
        {
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          "value": "CWE-362"
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      "type": "Secondary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-362"
        }
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write (COW) breakage of private read-only shared memory mappings. This flaw allows an unprivileged, local user to gain write access to read-only memory mappings, increasing their privileges on the system."
    },
    {
      "lang": "es",
      "value": "Se encontró una condición de carrera en la forma en que el subsistema de memoria del kernel de Linux manejaba la ruptura de copia en escritura (COW) de las asignaciones de memoria compartida privada de sólo lectura. Este fallo permite a un usuario local no privilegiado conseguir acceso de escritura a las asignaciones de memoria de sólo lectura, aumentando sus privilegios en el sistema"
    }
  ],
  "lastModified": "2026-06-17T04:42:10.500",
  "configurations": [
    {
      "nodes": [
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  "sourceIdentifier": "secalert@redhat.com"
}