Threat Intelligence / CVE / CVE-2026-26122

CVE-2026-26122 — Microsoft Aci Confidential Containers

CVSS v3.1 6.5 (MEDIUM) · EPSS 0.5% (higher than 66.9% of all scored CVEs) · Priority 5.9/10 · Published 2026-03-05

As of 2026-03-16, CVE-2026-26122 is a MEDIUM-severity vulnerability in Microsoft Aci Confidential Containers, CVSS v3.1 6.5, EPSS 0.5% (66.9th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-26122, most recently “Microsoft Office RCE via Preview Pane (CVE-2026-26110, CVE-2026-26113) — March 2026 Patch Tuesday”.

Last updated: 2026-03-16

What is CVE-2026-26122?

Initialization of a resource with an insecure default in Azure Compute Gallery allows an authorized attacker to disclose information over a network.

The record classifies CVE-2026-26122 under weakness class CWE-1188. 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 192 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)
0.5% probability of exploitation in the next 30 days, higher than 66.9% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
5.9/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-03-05, last modified 2026-03-16

Is CVE-2026-26122 being exploited?

It currently carries a trending score of 22 in the Threadlinqs vulnerability feed.

Affected products and versions

How to fix CVE-2026-26122

The record marks a vendor fix as available for CVE-2026-26122. Patch reference: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26122. Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26122. 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-2026-26122

1 tracked threat in the Threadlinqs corpus references CVE-2026-26122, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Seeded from research and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.

Full detection coverage & IOCs for threats exploiting CVE-2026-26122 are available via the Threadlinqs MCP server (Purple tier). View plans →

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