What is CVE-2026-45839?

CVE-2026-45839 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. bpf: reject negative CO-RE accessor indices in bpf_core_parse_spec()

Which CVE IDs does CVE-2026-45839 cover?

CVE-2026-45839 covers the following CVE IDs: CVE-2026-45839. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-45839?

CVE-2026-45839 has a CVSS v3 base score of 7.1, published by Microsoft Security Response Center (MSRC).

CVE-2026-45839MediumCVSS 7.1

bpf: reject negative CO-RE accessor indices in bpf_core_parse_spec()

Vendor

Microsoft Security Response Center (MSRC)

Published

May 28, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-45839 →