How severe is CVE-2020-1704?

CVE-2020-1704 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-1704 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-1704?

CVE-2020-1704 affects Redhat Openshift Service Mesh. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-1704?

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-2020-1704 published?

CVE-2020-1704 was published on 2020-02-17 and last updated on 2026-06-17.

CVE-2020-1704

CVE-2020-1704 is a high-severity vulnerability in Redhat Openshift Service Mesh with a CVSS 3.x base score of 7.0. 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-732.

Key facts

Severity: High (CVSS 3.x base score 7.0)
CVSS v2: 4.6
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Redhat Openshift Service Mesh
Published: 2020-02-17
Last modified: 2026-06-17

Description

An insecure modification vulnerability in the /etc/passwd file was found in all versions of OpenShift ServiceMesh (maistra) before 1.0.8 in the openshift/istio-kialia-rhel7-operator-container. An attacker with access to the container could use this flaw to modify /etc/passwd and escalate their privileges.

Frequently asked questions

What is CVE-2020-1704?: An insecure modification vulnerability in the /etc/passwd file was found in all versions of OpenShift ServiceMesh (maistra) before 1.0.8 in the openshift/istio-kialia-rhel7-operator-container. An attacker with access to the container could use this flaw to modify /etc/passwd and escalate their privileges.
How severe is CVE-2020-1704?: CVE-2020-1704 has a CVSS 3.x base score of 7.0, rated high severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-1704 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-1704?: CVE-2020-1704 affects Redhat Openshift Service Mesh. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-1704?: 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-2020-1704 published?: CVE-2020-1704 was published on 2020-02-17 and last updated on 2026-06-17.

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1704

Affected products (1)

cpe:2.3:a:redhat:openshift_service_mesh:*:*:*:*:*:*:*:*

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