CVE-2021-20038

Known Exploited Vulnerability Entry External Catalog

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Entry Details

CVE-2021-20038

Confirmed

Yes

2022-01-28 00:00 UTC

Timestamps

2022-01-28

2022-01-28

Scope

KEV entry: SonicWall SMA 100 Appliances Stack-Based Buffer Overflow Vulnerability | Affected: SonicWall / SMA 100 Appliances | Description: SonicWall SMA 100 devies are vulnerable to an unauthenticated stack-based buffer overflow vulnerability where exploitation can result in code execution. | Required action: Apply updates per vendor instructions. | Due date: 2022-02-11 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2021-20038

References
  • {'id': 'CVE-2021-20038', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-20038'}

73aba32f-c62a-4ccd-a94c-a8587d5f5871

405284c2-e461-4670-8979-7fd2c9755a60

2026-02-02 12:28 UTC

2026-02-02 12:28 UTC

Evidence (1)
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-121"
  ],
  "date_added": "2022-01-28",
  "due_date": "2022-02-11",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Known",
  "product": "SMA 100 Appliances",
  "vendorProject": "SonicWall",
  "vulnerabilityName": "SonicWall SMA 100 Appliances Stack-Based Buffer Overflow Vulnerability"
}
 -
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