How severe is CVE-2021-33973?

CVE-2021-33973 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-33973 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-33973?

CVE-2021-33973 affects 360totalsecurity 360 Total Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-33973?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-33973 published?

CVE-2021-33973 was published on 2023-04-19 and last updated on 2026-06-17.

CVE-2021-33973

CVE-2021-33973 is a high-severity vulnerability in 360totalsecurity 360 Total Security with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: 360totalsecurity 360 Total Security
Published: 2023-04-19
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2021-33973?: 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.
How severe is CVE-2021-33973?: CVE-2021-33973 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-33973 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-33973?: CVE-2021-33973 affects 360totalsecurity 360 Total Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-33973?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-33973 published?: CVE-2021-33973 was published on 2023-04-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:360totalsecurity:360_total_security:10.8.0.1213:*:*:*:*:*:*:*

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