How severe is CVE-2026-7461?

CVE-2026-7461 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-7461 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-7461?

CVE-2026-7461 affects Amazon Amazon Ecs Container Agent. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-7461?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-7461 have an EU (EUVD) identifier?

Yes. CVE-2026-7461 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26412.

When was CVE-2026-7461 published?

CVE-2026-7461 was published on 2026-04-30 and last updated on 2026-06-17.

CVE-2026-7461

CVE-2026-7461 is a high-severity vulnerability in Amazon Amazon Ecs Container Agent with a CVSS 3.x base score of 7.2. 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v4: 7.5
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26412
Weakness: CWE-78
Affected product: Amazon Amazon Ecs Container Agent
Published: 2026-04-30
Last modified: 2026-06-17

Description

Improper neutralization of inputs used in an OS command in the FSx Windows File Server volume mounting component in Amazon ECS Agent on Windows before version 1.103.0 might allow a remote authenticated threat actor to execute shell commands with SYSTEM privileges on the underlying host via a specially crafted username field in an ECS task definition. This issue requires permissions to register ECS task definitions or write to the Secrets Manager or SSM Parameter Store credentials used by the FSx volume configuration. To remediate this issue, users should upgrade to version 1.103.0.

Frequently asked questions

What is CVE-2026-7461?: Improper neutralization of inputs used in an OS command in the FSx Windows File Server volume mounting component in Amazon ECS Agent on Windows before version 1.103.0 might allow a remote authenticated threat actor to execute shell commands with SYSTEM privileges on the underlying host via a specially crafted username field in an ECS task definition. This issue requires permissions to register ECS task definitions or write to the Secrets Manager or SSM Parameter Store credentials used by the FSx volume configuration. To remediate this issue, users should upgrade to version 1.103.0.
How severe is CVE-2026-7461?: CVE-2026-7461 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-7461 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-7461?: CVE-2026-7461 affects Amazon Amazon Ecs Container Agent. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-7461?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-7461 have an EU (EUVD) identifier?: Yes. CVE-2026-7461 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26412.
When was CVE-2026-7461 published?: CVE-2026-7461 was published on 2026-04-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:amazon:amazon_ecs_container_agent:*:*:*:*:*:*:*:*

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