CVE-2021-47601

MEDIUMNVD 5.55.5—

5.5

In the Linux kernel, the following vulnerability has been resolved:

tee: amdtee: fix an IS_ERR() vs NULL bug

The __get_free_pages() function does not return error pointers it returns NULL so fix this condition to avoid a NULL dereference.

CVSS v3: 5.5
EG Score: 5.5(medium)
EPSS: 4.9%
KEV: Not listed

Published

June 19, 2024

Last Modified

November 21, 2024

References (6)

416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/640e28d618e82be78fb43b4bf5113bc90d6aa442
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/832f3655c6138c23576ed268e31cc76e0f05f2b1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9d7482771fac8d8e38e763263f2ca0ca12dd22c6
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/640e28d618e82be78fb43b4bf5113bc90d6aa442
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/832f3655c6138c23576ed268e31cc76e0f05f2b1
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9d7482771fac8d8e38e763263f2ca0ca12dd22c6

Weakness Classification(1)

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

CWE-476NULL Pointer Dereference

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 06:09 UTCepss_batch
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Frequently asked(5)

What is CVE-2021-47601?

CVE-2021-47601 is a medium vulnerability published on June 19, 2024. In the Linux kernel, the following vulnerability has been resolved: tee: amdtee: fix an IS_ERR() vs NULL bug The getfreepages() function does not return error pointers it returns NULL so fix this condition to avoid a NULL dereference.

When was CVE-2021-47601 disclosed?

CVE-2021-47601 was first published in the National Vulnerability Database on June 19, 2024, 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-2021-47601 actively exploited?

CVE-2021-47601 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-47601?

CVE-2021-47601 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2021-47601?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-47601, 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-2021-47601

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-47601?

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Published

Last Modified

References (6)

Frequently asked(5)

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