SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2018-9433

In ArrayConcatVisitor of builtins-array.cc, there is a possible type confusion due to improper input validation.

HIGH 8.8EPSS 0.26%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

In ArrayConcatVisitor of builtins-array.cc, there is a possible type confusion due to improper input validation. This could lead to remote code execution with no additional execution privileges needed. User interaction is needed for exploitation.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
0.26% probability · 17th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-116
Affected
google/android
Source
security@android.com
EPSS trend
0%3%5%27 October 2026: 0.26%27 October 202627 October 2026

EPSS 0.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.