🛡️ CVE-2023-0103 — xbc-dn32u-firmware

How this vulnerability can be exploited

This issue can be reached over the 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 none, integrity none, availability high.

CVSS metrics in full

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

• Attack vector: Network — reachable from anywhere that can route to the service.
• 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: None.
• Integrity impact: None.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2023-0103 is classified as CWE-788: Access of Memory Location After End of Buffer. The product reads or writes to a buffer using an index or pointer that references a memory location after the end of the buffer.

Affected software

CVE-2023-0103 is recorded against 1 package.

• xbc-dn32u-firmware

Timeline and source

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

References

www.cisa.gov
www.cisa.gov

Other advisories for this package

xbc-dn32u-firmware has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2023-22803 (7.5 High, published 15 Feb 2023)
• CVE-2023-0102 (9.1 Critical, published 15 Feb 2023)
• CVE-2023-22807 (9.8 Critical, published 15 Feb 2023)
• CVE-2023-22806 (7.5 High, published 15 Feb 2023)
• CVE-2023-22805 (6.5 Medium, published 15 Feb 2023)
• CVE-2023-22804 (9.1 Critical, published 15 Feb 2023)

Same weakness in other software

These advisories are the same class of weakness (CWE-788: Access of Memory Location After End of Buffer) in other software:

• CVE-2023-20585 (published 16 Apr 2026)
• CVE-2026-20052 (5.8 Medium, published 4 Mar 2026)
• CVE-2026-21316 (5.5 Medium, published 10 Feb 2026)
• CVE-2025-36581 (3.8 Low, published 14 Aug 2025)
• CVE-2025-43580 (5.5 Medium, published 8 Jul 2025)
• CVE-2024-20402 (8.6 High, published 23 Oct 2024)
• CVE-2024-20330 (8.6 High, published 23 Oct 2024)
• CVE-2024-42425 (3.8 Low, published 10 Sep 2024)

Details

Affected Packages

References