How severe is CVE-2017-5887?

CVE-2017-5887 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2017-5887 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-5887?

CVE-2017-5887 affects Starscream Project Starscream. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-5887?

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-2017-5887 published?

CVE-2017-5887 was published on 2017-04-06 and last updated on 2026-06-17.

CVE-2017-5887

CVE-2017-5887 is a high-severity vulnerability in Starscream Project Starscream with a CVSS 3.x base score of 7.5. 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-295.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Starscream Project Starscream
Published: 2017-04-06
Last modified: 2026-06-17

Description

WebSocket.swift in Starscream before 2.0.4 allows an SSL Pinning bypass because pinning occurs in the stream function (this is too late; pinning should occur in the initStreamsWithData function).

Frequently asked questions

What is CVE-2017-5887?: WebSocket.swift in Starscream before 2.0.4 allows an SSL Pinning bypass because pinning occurs in the stream function (this is too late; pinning should occur in the initStreamsWithData function).
How severe is CVE-2017-5887?: CVE-2017-5887 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2017-5887 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-5887?: CVE-2017-5887 affects Starscream Project Starscream. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-5887?: 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-2017-5887 published?: CVE-2017-5887 was published on 2017-04-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:starscream_project:starscream:*:*:*:*:*:*:*:*

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