🛡️ CVE-2023-0284 — checkmk

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs low-level 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 high, availability high.

CVSS metrics in full

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

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
• Privileges required: Low — an ordinary user account is enough.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: None.
• Integrity impact: High — total loss, or loss the attacker controls.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2023-0284 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-2023-0284 is recorded against 1 package.

• checkmk (from 1.6.0 up to 2.0.0)

Timeline and source

Published on 26 January 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

checkmk.com
checkmk.com

Other advisories for this package

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

• CVE-2026-9549 (4.8 Medium, published 8 Jun 2026)
• CVE-2026-8833 (5.4 Medium, published 8 Jun 2026)
• CVE-2026-8078 (4.8 Medium, published 8 Jun 2026)
• CVE-2026-7765 (5.3 Medium, published 8 Jun 2026)
• CVE-2026-7186 (5.4 Medium, published 8 Jun 2026)
• CVE-2024-47091 (7.8 High, published 13 May 2026)
• CVE-2026-33457 (6.3 Medium, published 10 Apr 2026)
• CVE-2026-33456 (7.6 High, published 10 Apr 2026)

Same weakness in other software

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

• 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)
• 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-2023-0284 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Affected Packages

References