🛡️ CVE-2026-9211 — cax30-firmware

How this vulnerability can be exploited

This issue can be reached from an adjacent network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

• Attack vector: Adjacent network — the attacker has to sit on the same local or logical network.
• Attack complexity: Low — the attack works reliably, with no preparation.
• Privileges required: None — an unauthenticated stranger can try it.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: High — total loss, or loss the attacker controls.
• Integrity impact: High — total loss, or loss the attacker controls.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2026-9211 is classified as CWE-20: Improper Input Validation. The application accepts input without checking that it has the expected form, so malformed values reach code that assumes they are well formed.

Affected software

CVE-2026-9211 is recorded against 4 packages.

• cax30-firmware (fixed in 2.2.1.4)
• rax30-firmware (fixed in 1.0.10.94)
• rax5-firmware (fixed in 1.0.5.34)
• raxe300-firmware (fixed in 1.0.10.72)

Timeline and source

Published on 9 June 2026 and last revised on 23 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

kb.netgear.com
www.netgear.com
www.netgear.com
www.netgear.com
www.netgear.com

Other advisories for this package

cax30-firmware has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2022-43654 (8.8 High, published 7 May 2024)
• CVE-2023-44445 (8.8 High, published 3 May 2024)

Same weakness in other software

These advisories are the same class of weakness (CWE-20: Improper Input Validation) in other software:

• CVE-2022-29207 (5.0 Medium, published 9 Jul 2026)
• CVE-2022-29201 (5.0 Medium, published 9 Jul 2026)
• CVE-2022-29192 (5.0 Medium, published 9 Jul 2026)
• CVE-2016-1517 (published 9 Jul 2026)
• CVE-2022-29213 (5.0 Medium, published 9 Jul 2026)
• CVE-2022-29191 (5.0 Medium, published 9 Jul 2026)
• CVE-2022-29212 (5.0 Medium, published 9 Jul 2026)
• CVE-2022-29211 (5.0 Medium, published 9 Jul 2026)

Details

Affected Packages

References