How severe is CVE-2020-6858?

CVE-2020-6858 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-6858 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-6858?

CVE-2020-6858 primarily affects Hotels Styx. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-6858?

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

When was CVE-2020-6858 published?

CVE-2020-6858 was published on 2020-03-12 and last updated on 2026-06-17.

CVE-2020-6858

CVE-2020-6858 is a medium-severity vulnerability in Hotels Styx with a CVSS 3.x base score of 6.5. 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-74.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Hotels Styx
Published: 2020-03-12
Last modified: 2026-06-17

Description

Hotels Styx through 1.0.0.beta8 allows HTTP response splitting due to CRLF Injection. This is exploitable if untrusted user input can appear in a response header.

Frequently asked questions

What is CVE-2020-6858?: Hotels Styx through 1.0.0.beta8 allows HTTP response splitting due to CRLF Injection. This is exploitable if untrusted user input can appear in a response header.
How severe is CVE-2020-6858?: CVE-2020-6858 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-6858 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-6858?: CVE-2020-6858 primarily affects Hotels Styx. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-6858?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-6858 published?: CVE-2020-6858 was published on 2020-03-12 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:a:hotels:styx:*:*:*:*:*:*:*:*
cpe:2.3:a:hotels:styx:1.0.0:beta1:*:*:*:*:*:*
cpe:2.3:a:hotels:styx:1.0.0:beta2:*:*:*:*:*:*
cpe:2.3:a:hotels:styx:1.0.0:beta3:*:*:*:*:*:*
cpe:2.3:a:hotels:styx:1.0.0:beta4:*:*:*:*:*:*
cpe:2.3:a:hotels:styx:1.0.0:beta5:*:*:*:*:*:*
cpe:2.3:a:hotels:styx:1.0.0:beta6:*:*:*:*:*:*
cpe:2.3:a:hotels:styx:1.0.0:beta7:*:*:*:*:*:*
cpe:2.3:a:hotels:styx:1.0.0:beta9:*:*:*:*:*:*

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