How severe is CVE-2019-11888?

CVE-2019-11888 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-2019-11888 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-11888?

CVE-2019-11888 affects Golang Go. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-11888?

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-2019-11888 published?

CVE-2019-11888 was published on 2019-05-13 and last updated on 2026-06-17.

CVE-2019-11888

CVE-2019-11888 is a critical-severity vulnerability in Golang Go 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-269.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-269
Affected product: Golang Go
Published: 2019-05-13
Last modified: 2026-06-17

Description

Go through 1.12.5 on Windows mishandles process creation with a nil environment in conjunction with a non-nil token, which allows attackers to obtain sensitive information or gain privileges.

Frequently asked questions

What is CVE-2019-11888?: Go through 1.12.5 on Windows mishandles process creation with a nil environment in conjunction with a non-nil token, which allows attackers to obtain sensitive information or gain privileges.
How severe is CVE-2019-11888?: CVE-2019-11888 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-2019-11888 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-11888?: CVE-2019-11888 affects Golang Go. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-11888?: 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-2019-11888 published?: CVE-2019-11888 was published on 2019-05-13 and last updated on 2026-06-17.

References

https://go-review.googlesource.com/c/go/+/176619

Affected products (1)

cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*

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