How severe is CVE-2019-13116?

CVE-2019-13116 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-13116 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-13116?

CVE-2019-13116 affects Mulesoft Mule Runtime. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-13116?

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

When was CVE-2019-13116 published?

CVE-2019-13116 was published on 2019-10-16 and last updated on 2026-06-17.

CVE-2019-13116

CVE-2019-13116 is a critical-severity vulnerability in Mulesoft Mule Runtime with a CVSS 3.x base score of 9.8. 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-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Mulesoft Mule Runtime
Published: 2019-10-16
Last modified: 2026-06-17

Description

The MuleSoft Mule Community Edition runtime engine before 3.8 allows remote attackers to execute arbitrary code because of Java Deserialization, related to Apache Commons Collections

Frequently asked questions

What is CVE-2019-13116?: The MuleSoft Mule Community Edition runtime engine before 3.8 allows remote attackers to execute arbitrary code because of Java Deserialization, related to Apache Commons Collections
How severe is CVE-2019-13116?: CVE-2019-13116 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-13116 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-13116?: CVE-2019-13116 affects Mulesoft Mule Runtime. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-13116?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-13116 published?: CVE-2019-13116 was published on 2019-10-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mulesoft:mule_runtime:*:*:*:*:*:*:*:*

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