How severe is CVE-2020-10695?

CVE-2020-10695 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-10695 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-10695?

CVE-2020-10695 affects Redhat Single Sign-on. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-10695?

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-2020-10695 published?

CVE-2020-10695 was published on 2021-05-26 and last updated on 2026-06-17.

CVE-2020-10695

CVE-2020-10695 is a high-severity vulnerability in Redhat Single Sign-on with a CVSS 3.x base score of 7.8. 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-266.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-266
Affected product: Redhat Single Sign-on
Published: 2021-05-26
Last modified: 2026-06-17

Description

An insecure modification flaw in the /etc/passwd file was found in the redhat-sso-7 container. An attacker with access to the container can use this flaw to modify the /etc/passwd and escalate their privileges.

Frequently asked questions

What is CVE-2020-10695?: An insecure modification flaw in the /etc/passwd file was found in the redhat-sso-7 container. An attacker with access to the container can use this flaw to modify the /etc/passwd and escalate their privileges.
How severe is CVE-2020-10695?: CVE-2020-10695 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-10695 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-10695?: CVE-2020-10695 affects Redhat Single Sign-on. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-10695?: 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-2020-10695 published?: CVE-2020-10695 was published on 2021-05-26 and last updated on 2026-06-17.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1817530

Affected products (1)

cpe:2.3:a:redhat:single_sign-on:*:*:*:*:*:*:*:*

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