CVE-2021-33975

CRITICALNVD 10.010.0—Trending — 3 sources updated this week

10.0

Buffer Overflow vulnerability in Qihoo 360 Total Security v10.8.0.1060 and v10.8.0.1213 allows attacker to escalate privileges.

CVSS v3: 10.0
EG Score: 10.0(medium)
EPSS: 68.6%
KEV: Not listed

Published

April 19, 2023

Last Modified

February 5, 2025

Advisory Details (3)

Auto-updated May 23, 2026

No patch confirmed yet.

generic

https://www.youtube.com/channel/UCLJ6fZxUqbmPe4jiwC6o4hg/

generic

CVE-2021-33975 - Pastebin.com

https://pastebin.com/ivNL7s0n

generic

Memory Corruptor: vulnerabilities-disclosures

https://MemoryCorruptor.blogspot.com/p/vulnerabilities-disclosures.html

Weakness Classification(1)

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

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

(refreshed 11× in last 7d / 11× 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.

2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 02:39 UTCEG score recompute
2026-05-25 02:39 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-33975?

CVE-2021-33975 is a critical vulnerability published on April 19, 2023. Buffer Overflow vulnerability in Qihoo 360 Total Security v10.8.0.1060 and v10.8.0.1213 allows attacker to escalate privileges.

When was CVE-2021-33975 disclosed?

CVE-2021-33975 was first published in the National Vulnerability Database on April 19, 2023, with the most recent update on February 5, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-33975 actively exploited?

CVE-2021-33975 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 68.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-33975?

CVE-2021-33975 has a CVSS v3 base score of 10.0 (NVD).

How do I remediate CVE-2021-33975?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-33975, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-33975

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Is Your Infrastructure Affected by CVE-2021-33975?

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CVE-2021-33975

📅 Published

🔄 Last Modified

📋 Advisory Details (3)

CVE-2021-33975 - Pastebin.com

Memory Corruptor: vulnerabilities-disclosures

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-33975?

Published

Last Modified

Advisory Details (3)

Frequently asked(5)