CVE-2021-22600

Known Exploited Vulnerability Entry External Catalog

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Entry Details

CVE-2021-22600

Confirmed

Yes

2022-04-11 00:00 UTC

Timestamps

2022-04-11

2022-04-11

Scope

KEV entry: Linux Kernel Privilege Escalation Vulnerability | Affected: Linux / Kernel | Description: Linux Kernel contains a flaw in the packet socket (AF_PACKET) implementation which could lead to incorrectly freeing memory. A local user could exploit this for denial-of-service (DoS) or possibly for privilege escalation. | Required action: Apply updates per vendor instructions. | Due date: 2022-05-02 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2021-22600

References
  • {'id': 'CVE-2021-22600', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-22600'}

fc33e64c-73de-4023-9770-04bfad6e5bf3

405284c2-e461-4670-8979-7fd2c9755a60

2026-02-02 12:27 UTC

2026-02-02 12:27 UTC

Evidence (1)
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-415"
  ],
  "date_added": "2022-04-11",
  "due_date": "2022-05-02",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Unknown",
  "product": "Kernel",
  "vendorProject": "Linux",
  "vulnerabilityName": "Linux Kernel Privilege Escalation Vulnerability"
}
 -
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