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KEV Entry

CVE-2025-39964

Known Exploited Vulnerability Entry Previdian

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Entry Details
Confirmed Exploited

CVE-2025-39964

2026-09-18 14:30 UTC

Timestamps

2026-09-18

2026-09-18

Scope

crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg | Affected: Linux / Linux | CVSS: 7.8 (HIGH) | EPSS: 0.00323 | Used in malware: unknown | Not yet in CISA KEV: False

References
  • {'id': 'CVE-2025-39964', 'url': 'https://www.cve.org/CVERecord?id=CVE-2025-39964'}
  • {'id': 'GHSA-WR5G-MFHW-RPFJ', 'url': 'https://github.com/advisories/GHSA-WR5G-MFHW-RPFJ'}
  • {'id': 'previdian', 'url': 'https://previdian.com/CVE-2025-39964'}

d09a224d-3ea2-4298-afea-8d04b038d5c5

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

2026-09-19 15:00 UTC

2026-09-19 15:00 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report previdian successful_exploitation 0.70
View details 
{
  "added_date": "2026-09-18T14:30:42.702Z",
  "ahead_of_cisa_kev": null,
  "cve_id": "CVE-2025-39964",
  "cvss_estimated": false,
  "cvss_score": 7.8,
  "cvss_severity": "HIGH",
  "epss_percentile": 0.25599,
  "epss_score": 0.00323,
  "feed": "Previdian (previdian.com)",
  "ghsa_id": "GHSA-WR5G-MFHW-RPFJ",
  "not_yet_in_cisa_kev": false,
  "previous_ids": [],
  "product": "Linux",
  "title": "crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg",
  "used_in_malware": "unknown",
  "vendor": "Linux",
  "virtual_patch": false,
  "vulnerability_id": "CVE-2025-39964"
}
 -
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