CVE-2021-33973

HIGHNVD 7.87.8—Trending — 3 sources updated this week

7.8

Buffer Overflow vulnerability in Qihoo 360 Safe guard v12.1.0.1004, v12.1.0.1005, v13.1.0.1001 allows attacker to escalate priveleges.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 39.0%
KEV: Not listed

Published

April 19, 2023

Last Modified

February 5, 2025

References (6)

cve@mitrehttps://MemoryCorruptor.blogspot.com/p/vulnerabilities-disclosures.html
cve@mitrehttps://pastebin.com/fsLDebg5
cve@mitrehttps://www.youtube.com/channel/UCLJ6fZxUqbmPe4jiwC6o4hg/
af854a3a-2127-422b-91ae-364da2661108https://MemoryCorruptor.blogspot.com/p/vulnerabilities-disclosures.html
af854a3a-2127-422b-91ae-364da2661108https://pastebin.com/fsLDebg5
af854a3a-2127-422b-91ae-364da2661108https://www.youtube.com/channel/UCLJ6fZxUqbmPe4jiwC6o4hg/

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-2021-33973?

CVE-2021-33973 is a high vulnerability published on April 19, 2023. Buffer Overflow vulnerability in Qihoo 360 Safe guard v12.1.0.1004, v12.1.0.1005, v13.1.0.1001 allows attacker to escalate priveleges.

When was CVE-2021-33973 disclosed?

CVE-2021-33973 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-2021-33973 actively exploited?

CVE-2021-33973 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 39.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-33973?

CVE-2021-33973 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2021-33973?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-33973, 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-2021-33973

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CVE-2021-33973

📅 Published

🔄 Last Modified

🔗 References (6)