CVE-2018-9556

Name: CVE-2018-9556
Creator: NVD / NIST
Published: 2018-12-06T14:29:01.5+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.96%

Last modified Jun 17, 2026

CVE-2018-9556 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In ParsePayloadHeader of payload_metadata.cc, there is a possible out of bounds write due to an integer overflow. This could lead to remote escalation of privilege with no additional execution privileges needed. EPSS estimates a 1.96% chance of exploitation in the next 30 days.

Description

In ParsePayloadHeader of payload_metadata.cc, there is a possible out of bounds write due to an integer overflow. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android-9. Android ID: A-113118184.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.96%

77.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Google	Android	9.0

References

http://www.securityfocus.com/bid/106147Third Party Advisory, VDB Entry
https://source.android.com/security/bulletin/2018-12-01Patch, Vendor Advisory
http://www.securityfocus.com/bid/106147Third Party Advisory, VDB Entry
https://source.android.com/security/bulletin/2018-12-01Patch, Vendor Advisory

Timeline

Published: Dec 6, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-9556?

How severe is CVE-2018-9556?

CVE-2018-9556 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.96% probability of exploitation in the next 30 days.

How do I fix CVE-2018-9556?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-9556?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST