CVE-2026-58956 — Vulnerability intelligence

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Published: 2026-11-02T20:17:52.167

CVSS

8.4

CISA KEV

Not listed; not proof of no exploitation

Original source text (not a translation)

In modpowF4 of avb_rsa.c, there is a possible signature verification bypass due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Sources

• CVE-2026-58956
• Original advisory