CVE-2021-36995 Path traversal in EMUI

What is CVE-2021-36995?

CVE-2021-36995 is a high-severity path traversal vulnerability in Huawei Emui, published on 28 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

There is an Unauthorized file access vulnerability in Huawei Smartphone.Successful exploitation of this vulnerability by modifying soft links may tamper with the files restored from backups.

Which versions are affected by CVE-2021-36995?

It affects 2 products.

Products include Huawei Emui, Huawei Magic Ui.

How do I fix CVE-2021-36995?

No fix has been published for CVE-2021-36995 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2021-36995 being exploited?

There is no known exploitation of CVE-2021-36995 in the wild and no public exploit code.

Other vulnerabilities in Huawei Emui

• CVE-2023-52370 Memory corruption in EMUI Critical 9.8
• CVE-2023-52378 Business logic in EMUI Critical 9.8
• CVE-2023-52381 Code injection in EMUI Critical 9.8
• CVE-2023-52103 Memory corruption in EMUI Critical 9.8
• CVE-2023-46773 Privilege escalation in EMUI Critical 9.8

All Huawei Emui vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-7m2m-89hr-82qc.