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CVE-2025-39682Vulnerability

Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability

Exploited in the wildCISA added it to its Known Exploited Vulnerabilities list on .

Reported by 4 independent sources · first reported by CISA advisories · last reported

Last reported 12 days ago

CISA KEVAdded 18 Sep 2026
Fix due 21 Sep 2026
Used by ransomware: not knownCISA KEV catalogue
EPSS2.9%
higher than 86% of CVEsFIRST EPSS, as of 23 Oct 2026

What the reports say

4 reports, newest first · the exact sentence from each

  1. “CVE-2025-39682”

    Recorded FutureVendor
    September 2026 CVE Landscape

  2. “CISA added three actively exploited Linux kernel vulnerabilities: CVE-2025-39682, CVE-2026-53266, and CVE-2025-39964 to its KEV Catalog on September 18, 2026, triggering a 3-day remediation deadline that passed on September 21.”

    Qualys Threat ResearchVendor
    CISA BOD 26-04 Timelines for Three Linux Kernel CVEs

  3. “CVE-2025-39682”

    CERT-FRGovernment
    Bulletin d'actualité CERTFR-2026-ACT-040 (21 septembre 2026)

  4. “CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability”

    CISA advisoriesGovernment
    CISA Adds One Known Exploited Vulnerability to Catalog

Indicators reported together

named in the same reports
Copy these 3 indicators · defanged

Also named with it: CVE-2025-39964, CVE-2026-53266, CVE-2026-87491, CVE-2026-76460, CVE-2026-76461, CVE-2026-58704, CVE-2026-87886, CVE-2023-54391, CVE-2026-65400, CVE-2026-60004, CVE-2022-0847, CVE-2026-35273, CVE-2026-85046, CVE-2026-85880, CVE-2025-14923, CVE-2026-11541, CVE-2026-48710

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