CVE-2026-83798

Timeline

Detection, updates, and resolution for this record.

1. Oct 13, 2026 · NIST NVD

   Detected

   Improper verification of cryptographic signature in Windows Update Stack allows an authorized attacker to perform spoofing locally.

2. Oct 14, 2026 · NIST NVD

   Updated

   Improper verification of cryptographic signature in Windows Update Stack allows an authorized attacker to perform spoofing locally.

Sources

• CVE.orgCVE-2026-83798

  Official CVE identifier

  cve.org
• FIRST EPSSCVE-2026-83798

  30-day exploitation probability 0.2%

  first.org
• NIST NVDCVE-2026-83798

  Improper verification of cryptographic signature in Windows Update Stack allows an authorized attacker to perform spoofing locally.

  nvd.nist.gov

References

• Reference · msrc.microsoft.com