CVE-2019-5252

Severity: low (CVSS 3.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-12-14 · updated 2026-06-17
Weakness: CWE-287

Description

There is an improper authentication vulnerability in Huawei smartphones (Y9, Honor 8X, Honor 9 Lite, Honor 9i, Y6 Pro). The applock does not perform a sufficient authentication in a rare condition. Successful exploit could allow the attacker to use the application locked by applock in an instant.

Affected products

Huawei Enjoy 8 Plus Firmware: before 9.1.0.124\(c00e112r1p6t8\) — fixed in 9.1.0.124\(c00e112r1p6t8\)
Huawei Honor 8X Firmware: before 9.1.0.217\(c00e15r3p2t8\); before 9.1.0.237\(c432e1r3p2t8\); before 9.1.0.237\(c636e2r4p1t8\) — fixed in 9.1.0.217\(c00e15r3p2t8\), 9.1.0.237\(c432e1r3p2t8\), 9.1.0.237\(c636e2r4p1t8\)
Huawei Honor 9 Lite Firmware: before 9.1.0.124\(c00e112r2p10t8\); before 9.1.0.136\(c636e5r1p5t8\) — fixed in 9.1.0.124\(c00e112r2p10t8\), 9.1.0.136\(c636e5r1p5t8\)
Huawei Honor 9I Firmware: before 9.1.0.115\(c00e113r1p6t8\); before 9.1.0.122\(c636e4r1p4t8\) — fixed in 9.1.0.115\(c00e113r1p6t8\), 9.1.0.122\(c636e4r1p4t8\)
Huawei Y6 Pro Firmware: before 9.1.0.248\(c636e5r3p1\) — fixed in 9.1.0.248\(c636e5r3p1\)
Huawei Y9 Firmware: before 9.1.0.131\(c432e6r1p5t8\) — fixed in 9.1.0.131\(c432e6r1p5t8\)

How to fix

Upgrade to a fixed version: Huawei Enjoy 8 Plus Firmware 9.1.0.124\(c00e112r1p6t8\); Huawei Honor 8X Firmware 9.1.0.217\(c00e15r3p2t8\), 9.1.0.237\(c432e1r3p2t8\), 9.1.0.237\(c636e2r4p1t8\); Huawei Honor 9 Lite Firmware 9.1.0.124\(c00e112r2p10t8\), 9.1.0.136\(c636e5r1p5t8\); Huawei Honor 9I Firmware 9.1.0.115\(c00e113r1p6t8\), 9.1.0.122\(c636e4r1p4t8\); Huawei Y6 Pro Firmware 9.1.0.248\(c636e5r3p1\); Huawei Y9 Firmware 9.1.0.131\(c432e6r1p5t8\). Check the vendor advisory for mitigations.

References

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