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VulnerabilityCVE-2026-23655Published 2026-02-10

CVE-2026-23655 — Microsoft Confidential Sidecar Containers

medium

As of 2026-08-19, CVE-2026-23655 is a MEDIUM-severity vulnerability in Microsoft Confidential Sidecar Containers, CVSS v3.1 6.5, EPSS 1.0% (62.2th percentile). Threadlinqs Intelligence links 2 tracked threat campaigns to CVE-2026-23655, most recently “February 2026 Patch Tuesday: Six Zero-Days Among 59 CVEs — CrowdStrike-Discovered RDP EoP Exploited Since December 2025”.

CVSS v3.1
6.5/10Medium
EPSS
1.0%Higher than 62.2% of scored CVEs
CISA KEV
NoNot in the KEV catalog
Tracked threats
2Campaigns referencing it
Priority
5.7/10Threadlinqs triage score
Published
Updated 2026-08-19
CVSS v3.1 6.5 (MEDIUM) · EPSS 1.0% (higher than 62.2% of all scored CVEs) · Priority 5.7/10 · Published 2026-02-10

Last updated:

What is CVE-2026-23655?

Cleartext storage of sensitive information in Azure Compute Gallery allows an authorized attacker to disclose information over a network.

The record classifies CVE-2026-23655 under weakness class CWE-312. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 260 days ago.

Severity and exploitation probability

CVSS v3.1 base score
6.5 — MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS (FIRST)
1.0% probability of exploitation in the next 30 days, higher than 62.2% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
5.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-02-10, last modified 2026-08-19

Is CVE-2026-23655 being exploited?

It currently carries a trending score of 26 in the Threadlinqs vulnerability feed.

Affected products and versions

How to fix CVE-2026-23655

The record marks a vendor fix as available for CVE-2026-23655. Patch reference: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23655. Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23655. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

Threat activity tracking CVE-2026-23655

2 tracked threats in the Threadlinqs corpus reference CVE-2026-23655, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Enriched from CVE.org, NVD, FIRST EPSS. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.

Vendor advisory and patch