CVE-2021-40017 is a critical vulnerability affecting Huawei EMUI and HarmonyOS, stemming from a missing key format validity check in the HW_KEYMASTER module. With a CVSS score of 9.8, it allows unauthenticated remote attackers to achieve out-of-bounds memory access, potentially leading to complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness among security researchers.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
11.0.1CPE matchmatch criteria | cpe:2.3:o:huawei:emui:11.0.1:*:*:*:*:*:*:* | ||
12.0.0CPE matchmatch criteria | cpe:2.3:o:huawei:emui:12.0.0:*:*:*:*:*:*:* | ||
2.0CPE matchmatch criteria | cpe:2.3:o:huawei:harmonyos:2.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.