How severe is CVE-2022-29527?

CVE-2022-29527 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-29527 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-29527?

CVE-2022-29527 affects Amazon Amazon Ssm Agent. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-29527?

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.

When was CVE-2022-29527 published?

CVE-2022-29527 was published on 2022-04-20 and last updated on 2026-06-17.

CVE-2022-29527

CVE-2022-29527 is a high-severity vulnerability in Amazon Amazon Ssm Agent with a CVSS 3.x base score of 7.0. 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-362.

Key facts

Severity: High (CVSS 3.x base score 7.0)
CVSS v2: 6.9
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Amazon Amazon Ssm Agent
Published: 2022-04-20
Last modified: 2026-06-17

Description

Amazon AWS amazon-ssm-agent before 3.1.1208.0 creates a world-writable sudoers file, which allows local attackers to inject Sudo rules and escalate privileges to root. This occurs in certain situations involving a race condition.

Frequently asked questions

What is CVE-2022-29527?: Amazon AWS amazon-ssm-agent before 3.1.1208.0 creates a world-writable sudoers file, which allows local attackers to inject Sudo rules and escalate privileges to root. This occurs in certain situations involving a race condition.
How severe is CVE-2022-29527?: CVE-2022-29527 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-29527 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-29527?: CVE-2022-29527 affects Amazon Amazon Ssm Agent. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-29527?: 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.
When was CVE-2022-29527 published?: CVE-2022-29527 was published on 2022-04-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:amazon:amazon_ssm_agent:*:*:*:*:*:*:*:*

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