HIGH

CVE-2026-91191

CVSS v3

7.5

HIGH

EPSS Score

0.2 %

exploit probability, as of 2026-09-30

CISA KEV

known exploited

Exploitation

—

SSVC status

Description

The device's update mechanism includes conditions that allow unauthorized software packages to be accepted as authentic. During the boot process, the stock done function disables signature verification in the OPKG configuration before restoring optional packages from a writable, unsigned feed. Separately, the publicly distributed SDK contains the production private key whose corresponding public key is trusted by both stable and beta firmware builds. Either issue undermines package authenticity,

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2026-09-29
Last Modified: 2026-09-29

Frequently asked questions

What is CVE-2026-91191?

Is CVE-2026-91191 actively exploited?

Active exploitation of CVE-2026-91191 has not been confirmed. Its EPSS score was 0.2% on 2026-09-30, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-91191?

CVE-2026-91191 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

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