How severe is CVE-2019-9459?

CVE-2019-9459 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-9459 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-9459?

CVE-2019-9459 affects Google Android. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-9459?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-9459 published?

CVE-2019-9459 was published on 2019-09-27 and last updated on 2026-06-17.

CVE-2019-9459

CVE-2019-9459 is a critical-severity vulnerability in Google Android with a CVSS 3.x base score of 9.8. 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Google Android
Published: 2019-09-27
Last modified: 2026-06-17

Description

In libttspico, there is a possible OOB write due to a heap buffer overflow. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: AndroidVersions: Android-10Android ID: A-79593569

Frequently asked questions

What is CVE-2019-9459?: In libttspico, there is a possible OOB write due to a heap buffer overflow. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: AndroidVersions: Android-10Android ID: A-79593569
How severe is CVE-2019-9459?: CVE-2019-9459 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-9459 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-9459?: CVE-2019-9459 affects Google Android. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-9459?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-9459 published?: CVE-2019-9459 was published on 2019-09-27 and last updated on 2026-06-17.

References

https://source.android.com/security/bulletin/android-10

Affected products (1)

cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:*

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