🛡️ CVE-2026-3563 — powershell-universal

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs administrative 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 low.

CVSS metrics in full

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

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: Low — the attack works reliably, with no preparation.
• Privileges required: High — administrative rights are needed first.
• 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: Low — limited, and the attacker does not choose what is affected.

Weakness class

CVE-2026-3563 is classified as CWE-1289: Improper Validation of Unsafe Equivalence in Input. The product receives an input value that is used as a resource identifier or other type of reference, but it does not validate or incorrectly validates that the input is equivalent to a potentially-unsafe value.

Affected software

CVE-2026-3563 is recorded against 1 package.

• powershell-universal (fixed in 2026.1.4)

Timeline and source

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

References

devolutions.net

Other advisories for this package

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

• CVE-2026-16798 (6.5 Medium, published 24 Jul 2026)
• CVE-2026-16802 (6.5 Medium, published 24 Jul 2026)
• CVE-2026-16801 (8.8 High, published 24 Jul 2026)
• CVE-2026-16800 (8.8 High, published 24 Jul 2026)
• CVE-2026-16799 (5.0 Medium, published 24 Jul 2026)
• CVE-2026-13437 (6.5 Medium, published 29 Jun 2026)
• CVE-2026-8694 (5.3 Medium, published 12 Jun 2026)
• CVE-2026-4064 (8.3 High, published 17 Mar 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-1289: Improper Validation of Unsafe Equivalence in Input) in other software:

• CVE-2026-60074 (7.5 High, published 30 Jul 2026)
• CVE-2026-46644 (2.0 Low, published 14 Jul 2026)
• GHSA-6c87-g9pw-78fx (2.0 Low, published 1 Jul 2026)
• CVE-2026-39972 (8.0 High, published 25 Jun 2026)
• CVE-2026-50090 (9.3 Critical, published 12 Jun 2026)
• CVE-2026-49940 (6.5 Medium, published 4 Jun 2026)
• CVE-2026-48710 (6.5 Medium, published 4 Jun 2026)
• CVE-2026-47674 (5.3 Medium, published 4 Jun 2026)

Details

Affected Packages

References