🛡️ CVE-2023-4020 — gecko-software-development-kit

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability none.

CVSS metrics in full

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

• Attack vector: Local — a local account, shell or session on the host is needed.
• 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: Changed — a successful attack reaches components beyond the vulnerable one.
• Confidentiality impact: High — total loss, or loss the attacker controls.
• Integrity impact: High — total loss, or loss the attacker controls.
• Availability impact: None.

Weakness class

CVE-2023-4020 is classified as CWE-125: Out-of-bounds Read. The code reads past the limits of a buffer, exposing adjacent memory contents or crashing the process.

Affected software

CVE-2023-4020 is recorded against 1 package.

• gecko-software-development-kit (from 1.0.0 up to 4.4.0)

Timeline and source

Published on 15 December 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

community.silabs.com
github.com
community.silabs.com
github.com

Other advisories for this package

gecko-software-development-kit has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2024-22473 (6.8 Medium, published 21 Feb 2024)
• CVE-2023-45318 (10.0 Critical, published 20 Feb 2024)
• CVE-2024-0240 (6.5 Medium, published 15 Feb 2024)
• CVE-2023-6874 (7.5 High, published 5 Feb 2024)
• CVE-2023-6387 (7.5 High, published 2 Feb 2024)
• CVE-2023-5138 (6.8 Medium, published 3 Jan 2024)
• CVE-2023-4280 (9.3 Critical, published 2 Jan 2024)
• CVE-2023-41097 (4.6 Medium, published 21 Dec 2023)

Same weakness in other software

These advisories are the same class of weakness (CWE-125: Out-of-bounds Read) in other software:

• CVE-2019-14492 (8.0 High, published 9 Jul 2026)
• CVE-2022-23594 (8.0 High, published 9 Jul 2026)
• CVE-2017-18009 (8.0 High, published 9 Jul 2026)
• CVE-2019-14491 (8.0 High, published 9 Jul 2026)
• CVE-2022-21728 (8.0 High, published 9 Jul 2026)
• CVE-2017-12599 (8.0 High, published 9 Jul 2026)
• CVE-2017-12598 (8.0 High, published 9 Jul 2026)
• CVE-2019-16249 (published 9 Jul 2026)

Details

Affected Packages

References