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Δ / VULNERABILITY RECORD

CVE-2026-41676.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSUnscoredNo severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Sep 24, 2026

Disclosure summary

rust-openssl: Deriver::derive and PkeyCtxRef::derive can overflow short buffers on OpenSSL 1.1.1

Source-reported weakness categories

CWE-787

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

Microsoft Security Updates (CVRF) · 2026-Apr

Open original source · Updated Sep 24, 2026

rust-openssl: Deriver::derive and PkeyCtxRef::derive can overflow short buffers on OpenSSL 1.1.1

Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.

VendorProduct / associationVersion / bounds
Microsoft update guidecbl2 rpm-ostree 2022.1-8 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 rust 1.72.0-15 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guideazl3 rpm-ostree 2024.4-8 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 rpm-ostree 2022.1-8 on CBL-Mariner 2.0 (MSRC status code 3)
Microsoft update guidecbl2 rust 1.72.0-15 on CBL-Mariner 2.0 (MSRC status code 3)
Microsoft update guideazl3 clamav 1.5.2-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 rust 1.75.0-27 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 rust 1.90.0-6 on Azure Linux 3.0 (MSRC status code 3)

Vendor remediation references

  • Release Notes · product IDs 20878-21692, 21108-21692
  • Vendor guidance · product IDs 20878-21692, 21108-21692
ClamAV® blog · RSS-b2ce0a2b6a50e59783bc0be05aa2f884b5a

Open original source · Updated Jul 01, 2026

ClamAV 1.5.3 and 1.4.5 security patch versions published

CVE mention in publisher metadata; check the original affected versions.

Original records & references

PUBLISHED 2026-04-25T21:06:07-04:00
MODIFIED 2026-09-24T22:32:09-04:00
INGESTED 2026-10-08T12:45:03-04:00