How severe is CVE-2020-10807?

CVE-2020-10807 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2020-10807 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-10807?

CVE-2020-10807 affects Mitre Caldera. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-10807?

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

When was CVE-2020-10807 published?

CVE-2020-10807 was published on 2020-03-22 and last updated on 2026-06-17.

CVE-2020-10807

CVE-2020-10807 is a medium-severity vulnerability in Mitre Caldera with a CVSS 3.x base score of 5.3. 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-290.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-290
Affected product: Mitre Caldera
Published: 2020-03-22
Last modified: 2026-06-17

Description

auth_svc in Caldera before 2.6.5 allows authentication bypass (for REST API requests) via a forged "localhost" string in the HTTP Host header.

Frequently asked questions

What is CVE-2020-10807?: auth_svc in Caldera before 2.6.5 allows authentication bypass (for REST API requests) via a forged "localhost" string in the HTTP Host header.
How severe is CVE-2020-10807?: CVE-2020-10807 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2020-10807 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-10807?: CVE-2020-10807 affects Mitre Caldera. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-10807?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-10807 published?: CVE-2020-10807 was published on 2020-03-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mitre:caldera:*:*:*:*:*:*:*:*

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