KEV Entry

CVE-2023-0656

Known Exploited Vulnerability Entry Previdian

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Entry Details
Confirmed Exploited

CVE-2023-0656

2025-04-28 02:00 CEST

Timestamps

2025-04-28

2025-04-28

Scope

A Stack-based buffer overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could... | Affected: SonicWall / SonicOS | CVSS: 7.5 (HIGH) | EPSS: 0.41319 | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2023-0656', 'url': 'https://www.cve.org/CVERecord?id=CVE-2023-0656'}
  • {'id': 'previdian', 'url': 'https://previdian.com/CVE-2023-0656'}

ee7875a4-6a1d-4eae-b560-9bef45cfccbf

Previdian
caeb2787-0d58-4236-9039-7c86c3e566f3

2026-10-02 09:10 CEST

2026-10-02 09:10 CEST

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report previdian successful_exploitation 0.70
View details 
{
  "added_date": "2025-04-28T00:00:00.000Z",
  "ahead_of_cisa_kev": null,
  "cve_id": "CVE-2023-0656",
  "cvss_estimated": false,
  "cvss_score": 7.5,
  "cvss_severity": "HIGH",
  "epss_percentile": 0.98631,
  "epss_score": 0.41319,
  "feed": "Previdian (previdian.com)",
  "ghsa_id": null,
  "not_yet_in_cisa_kev": true,
  "previous_ids": [],
  "product": "SonicOS",
  "title": "A Stack-based buffer overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could...",
  "used_in_malware": "unknown",
  "vendor": "SonicWall",
  "virtual_patch": false,
  "vulnerability_id": "CVE-2023-0656"
}
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