How severe is CVE-2017-9663?

CVE-2017-9663 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 high, integrity none, and availability none.

Is CVE-2017-9663 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-9663?

CVE-2017-9663 affects Gm Shanghai Onstar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-9663?

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-2017-9663 published?

CVE-2017-9663 was published on 2018-01-09 and last updated on 2026-06-17.

CVE-2017-9663

CVE-2017-9663 is a high-severity vulnerability in Gm Shanghai Onstar 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-312.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-312
Affected product: Gm Shanghai Onstar
Published: 2018-01-09
Last modified: 2026-06-17

Description

An Cleartext Storage of Sensitive Information issue was discovered in General Motors (GM) and Shanghai OnStar (SOS) SOS iOS Client 7.1. Successful exploitation of this vulnerability may allow a remote attacker to access an encryption key that is stored in cleartext in memory.

Frequently asked questions

What is CVE-2017-9663?: An Cleartext Storage of Sensitive Information issue was discovered in General Motors (GM) and Shanghai OnStar (SOS) SOS iOS Client 7.1. Successful exploitation of this vulnerability may allow a remote attacker to access an encryption key that is stored in cleartext in memory.
How severe is CVE-2017-9663?: CVE-2017-9663 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 high, integrity none, and availability none.
Is CVE-2017-9663 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-9663?: CVE-2017-9663 affects Gm Shanghai Onstar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-9663?: 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-2017-9663 published?: CVE-2017-9663 was published on 2018-01-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gm:shanghai_onstar:7.1:*:*:*:*:iphone_os:*:*

More vulnerabilities in Gm Shanghai Onstar

CVE-2017-12695 — High (CVSS 8.8): An Improper Authentication issue was discovered in General Motors (GM) and Shanghai OnStar (SOS) SOS iOS Client 7.1.…
CVE-2017-12697 — Medium (CVSS 5.9): A Man-in-the-Middle issue was discovered in General Motors (GM) and Shanghai OnStar (SOS) SOS iOS Client 7.1.…

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