How severe is CVE-2021-28113?

CVE-2021-28113 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2021-28113 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-28113?

CVE-2021-28113 affects Okta Access Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-28113?

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

When was CVE-2021-28113 published?

CVE-2021-28113 was published on 2021-04-02 and last updated on 2026-06-17.

CVE-2021-28113

CVE-2021-28113 is a medium-severity vulnerability in Okta Access Gateway with a CVSS 3.x base score of 6.7. Its EPSS exploit-prediction score of 22% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
CVSS v2: 8.7
EPSS exploit prediction: 22% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Okta Access Gateway
Published: 2021-04-02
Last modified: 2026-06-17

Description

A command injection vulnerability in the cookieDomain and relayDomain parameters of Okta Access Gateway before 2020.9.3 allows attackers (with admin access to the Okta Access Gateway UI) to execute OS commands as a privileged system account.

Frequently asked questions

What is CVE-2021-28113?: A command injection vulnerability in the cookieDomain and relayDomain parameters of Okta Access Gateway before 2020.9.3 allows attackers (with admin access to the Okta Access Gateway UI) to execute OS commands as a privileged system account.
How severe is CVE-2021-28113?: CVE-2021-28113 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2021-28113 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-28113?: CVE-2021-28113 affects Okta Access Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-28113?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-28113 published?: CVE-2021-28113 was published on 2021-04-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:okta:access_gateway:*:*:*:*:*:*:*:*

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