How severe is CVE-2026-21522?

CVE-2026-21522 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-21522 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-21522?

CVE-2026-21522 affects Microsoft Confcom. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-21522?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-21522 have an EU (EUVD) identifier?

Yes. CVE-2026-21522 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7341.

When was CVE-2026-21522 published?

CVE-2026-21522 was published on 2026-02-10 and last updated on 2026-06-17.

CVE-2026-21522

CVE-2026-21522 is a medium-severity vulnerability in Microsoft Confcom with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7341
Weakness: CWE-77
Affected product: Microsoft Confcom
Published: 2026-02-10
Last modified: 2026-06-17

Description

Improper neutralization of special elements used in a command ('command injection') in Azure Compute Gallery allows an authorized attacker to elevate privileges locally.

Frequently asked questions

What is CVE-2026-21522?: Improper neutralization of special elements used in a command ('command injection') in Azure Compute Gallery allows an authorized attacker to elevate privileges locally.
How severe is CVE-2026-21522?: CVE-2026-21522 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-21522 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-21522?: CVE-2026-21522 affects Microsoft Confcom. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-21522?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-21522 have an EU (EUVD) identifier?: Yes. CVE-2026-21522 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7341.
When was CVE-2026-21522 published?: CVE-2026-21522 was published on 2026-02-10 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21522

Affected products (1)

cpe:2.3:a:microsoft:confcom:*:*:*:*:*:azure_cli:*:*

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