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CVE-2019-5306

17
FAUCET Score

CVE-2019-5306 describes a Factory Reset Protection (FRP) bypass vulnerability affecting Huawei P20 smartphones running firmware versions prior to Emily-AL00A 9.0.0.167. An attacker can perform a series of operations to delete the activation lock, thereby bypassing the FRP function and gaining unauthorized access to the device. This vulnerability has a CVSSv3 score of 4.6 (Medium), indicating a physical attack vector with low complexity, allowing an attacker to achieve high integrity impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< emily-al00a_9.0.0.167\(c00e81r1p21t8\)CPE matchmatch criteria
cpe:2.3:o:huawei:p20_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.6MEDIUM

CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
0.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
14.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 28th percentile among its peer group of 1,532 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

huawei.com / en/psirt/security-advisories/huawei-sa-20190228-01-smartphone-en
Vendor Advisory