CVE-2021-36991

HIGHNVD 7.57.5—

7.5

There is an Unauthorized file access vulnerability in Huawei Smartphone due to unstandardized path input.Successful exploitation of this vulnerability by creating malicious file paths can cause unauthorized file access.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 35.4%
KEV: Not listed

Published

October 28, 2021

Last Modified

November 21, 2024

References (2)

psirt@huaweihttps://consumer.huawei.com/en/support/bulletin/2021/7/
af854a3a-2127-422b-91ae-364da2661108https://consumer.huawei.com/en/support/bulletin/2021/7/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-20Improper Input Validation

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore

Frequently asked(5)

What is CVE-2021-36991?

CVE-2021-36991 is a high vulnerability published on October 28, 2021. There is an Unauthorized file access vulnerability in Huawei Smartphone due to unstandardized path input.Successful exploitation of this vulnerability by creating malicious file paths can cause unauthorized file access.

When was CVE-2021-36991 disclosed?

CVE-2021-36991 was first published in the National Vulnerability Database on October 28, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-36991 actively exploited?

CVE-2021-36991 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 35.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-36991?

CVE-2021-36991 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2021-36991?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-36991, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-36991

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-36991?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)