How severe is CVE-2018-9426?

CVE-2018-9426 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-2018-9426 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-9426?

CVE-2018-9426 primarily affects Google Android. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-9426?

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.

Does CVE-2018-9426 have an EU (EUVD) identifier?

Yes. CVE-2018-9426 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2018-21020.

When was CVE-2018-9426 published?

CVE-2018-9426 was published on 2024-12-02 and last updated on 2026-06-17.

CVE-2018-9426

CVE-2018-9426 is a high-severity vulnerability in Google Android 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-331.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2018-21020
Weakness: CWE-331
Affected product: Google Android
Published: 2024-12-02
Last modified: 2026-06-17

Description

In RsaKeyPairGenerator::getNumberOfIterations of RSAKeyPairGenerator.java, an incorrect implementation could cause weak RSA key pairs being generated. This could lead to crypto vulnerability with no additional execution privileges needed. User interaction is not needed for exploitation. Bulletin Fix: The fix is designed to correctly implement the key generation according to FIPS standard.

Frequently asked questions

What is CVE-2018-9426?: In RsaKeyPairGenerator::getNumberOfIterations of RSAKeyPairGenerator.java, an incorrect implementation could cause weak RSA key pairs being generated. This could lead to crypto vulnerability with no additional execution privileges needed. User interaction is not needed for exploitation. Bulletin Fix: The fix is designed to correctly implement the key generation according to FIPS standard.
How severe is CVE-2018-9426?: CVE-2018-9426 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-2018-9426 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-9426?: CVE-2018-9426 primarily affects Google Android. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-9426?: 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.
Does CVE-2018-9426 have an EU (EUVD) identifier?: Yes. CVE-2018-9426 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2018-21020.
When was CVE-2018-9426 published?: CVE-2018-9426 was published on 2024-12-02 and last updated on 2026-06-17.

References

https://source.android.com/docs/security/bulletin/pixel/2018-07-01

Affected products (5)

cpe:2.3:o:google:android:7.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:7.1.1:*:*:*:*:*:*:*
cpe:2.3:o:google:android:7.1.2:*:*:*:*:*:*:*
cpe:2.3:o:google:android:8.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:8.1:*:*:*:*:*:*:*

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