CVE-2021-27021
CVE-2021-27021 is a high-severity vulnerability in Puppet with a CVSS 3.x base score of 8.8. 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-89.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 6.5
- EPSS exploit prediction: 1% (66th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-89
- Affected product: Puppet
- Published:
- Last modified:
Description
A flaw was discovered in Puppet DB, this flaw results in an escalation of privileges which allows the user to delete tables via an SQL query.
Frequently asked questions
- What is CVE-2021-27021?
- A flaw was discovered in Puppet DB, this flaw results in an escalation of privileges which allows the user to delete tables via an SQL query.
- How severe is CVE-2021-27021?
- CVE-2021-27021 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-27021 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-27021?
- CVE-2021-27021 primarily affects Puppet. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-27021?
- 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-2021-27021 published?
- CVE-2021-27021 was published on 2021-07-20 and last updated on 2026-06-17.
References
Affected products (3)
- cpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
- cpe:2.3:a:puppet:puppet_enterprise:*:*:*:*:*:*:*:*
- cpe:2.3:a:puppet:puppetdb:*:*:*:*:*:*:*:*
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