How severe is CVE-2019-10400?

CVE-2019-10400 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2019-10400 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-10400?

CVE-2019-10400 affects Jenkins Script Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-10400?

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

When was CVE-2019-10400 published?

CVE-2019-10400 was published on 2019-09-12 and last updated on 2026-06-17.

CVE-2019-10400

CVE-2019-10400 is a medium-severity vulnerability in Jenkins Script Security with a CVSS 3.x base score of 4.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.2)
CVSS v2: 4.9
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Jenkins Script Security
Published: 2019-09-12
Last modified: 2026-06-17

Description

A sandbox bypass vulnerability in Jenkins Script Security Plugin 1.62 and earlier related to the handling of subexpressions in increment and decrement expressions not involving actual assignment allowed attackers to execute arbitrary code in sandboxed scripts.

Frequently asked questions

What is CVE-2019-10400?: A sandbox bypass vulnerability in Jenkins Script Security Plugin 1.62 and earlier related to the handling of subexpressions in increment and decrement expressions not involving actual assignment allowed attackers to execute arbitrary code in sandboxed scripts.
How severe is CVE-2019-10400?: CVE-2019-10400 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2019-10400 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-10400?: CVE-2019-10400 affects Jenkins Script Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-10400?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-10400 published?: CVE-2019-10400 was published on 2019-09-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jenkins:script_security:*:*:*:*:*:jenkins:*:*

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