KEV Entry

CVE-2026-48558

Known Exploited Vulnerability Entry External Catalog

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Entry Details
Confirmed Exploited

CVE-2026-48558

2026-06-29 14:20 UTC

Timestamps

2026-06-29

2026-06-29

Scope

KEVIntel entry: SimpleHelp Authentication Bypass via Missing OIDC JWT Signature Verification | Affected: SimpleHelp / SimpleHelp | CVSS: 9.5 (CRITICAL) | EPSS: 0.00721 | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2026-48558', 'url': 'https://www.cve.org/CVERecord?id=CVE-2026-48558'}
  • {'id': 'kevintel', 'url': 'https://kevintel.com/vuln/CVE-2026-48558'}

885e6fd4-e620-46f3-85eb-794dd7c822e6

caeb2787-0d58-4236-9039-7c86c3e566f3

2026-06-29 15:00 UTC

2026-06-29 15:00 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report kevintel successful_exploitation 0.70
View details 
{
  "added_date": "2026-06-29T14:20:22.145Z",
  "ahead_of_cisa_kev": null,
  "cvss_score": 9.5,
  "cvss_severity": "CRITICAL",
  "epss_percentile": 0.49308,
  "epss_score": 0.00721,
  "feed": "KEVIntel (kevintel.com)",
  "not_yet_in_cisa_kev": true,
  "product": "SimpleHelp",
  "title": "SimpleHelp Authentication Bypass via Missing OIDC JWT Signature Verification",
  "used_in_malware": "unknown",
  "vendor": "SimpleHelp"
}
 -
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