How severe is CVE-2020-2261?

CVE-2020-2261 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-2020-2261 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-2261?

CVE-2020-2261 affects Jenkins Perfecto. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-2261?

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-2020-2261 published?

CVE-2020-2261 was published on 2020-09-16 and last updated on 2026-06-17.

CVE-2020-2261

CVE-2020-2261 is a high-severity vulnerability in Jenkins Perfecto 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-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Jenkins Perfecto
Published: 2020-09-16
Last modified: 2026-06-17

Description

Jenkins Perfecto Plugin 1.17 and earlier executes a command on the Jenkins controller, allowing attackers with Job/Configure permission to run arbitrary commands on the Jenkins controller

Frequently asked questions

What is CVE-2020-2261?: Jenkins Perfecto Plugin 1.17 and earlier executes a command on the Jenkins controller, allowing attackers with Job/Configure permission to run arbitrary commands on the Jenkins controller
How severe is CVE-2020-2261?: CVE-2020-2261 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-2020-2261 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-2261?: CVE-2020-2261 affects Jenkins Perfecto. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-2261?: 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-2020-2261 published?: CVE-2020-2261 was published on 2020-09-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jenkins:perfecto:*:*:*:*:*:jenkins:*:*

More vulnerabilities in Jenkins Perfecto

CVE-2020-2260 — Medium (CVSS 4.3): A missing permission check in Jenkins Perfecto Plugin 1.17 and earlier allows attackers with Overall/Read permission to…

All CVEs affecting Jenkins Perfecto →

Other CWE-78 (OS Command Injection) vulnerabilities

CVE-2026-56004 — Critical (CVSS 10.0): A shellcode injection in the mercurial handler of the obs tar_scm source service before version 0.12.4 could be used by…
CVE-2026-56415 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability within the debug.pl script that is…
CVE-2026-56413 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability in the ms_service.pl service, which listens…
CVE-2026-49869 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, AuthenticationFilter in…
CVE-2026-49261 — Critical (CVSS 10.0): MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through…
CVE-2026-10520 — Critical (CVSS 10.0): An OS Command Injection vulnerability in Ivanti Sentry before the R10.5.2, R10.6.2 and R10.7.1 versions allows a…

Browse all CWE-78 (OS Command Injection) vulnerabilities →