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CVE-2021-33972

30
FAUCET Score

CVE-2021-33972 is a critical buffer overflow vulnerability affecting Qihoo 360 Safe Browser v13.0.2170.0, which could allow an unauthenticated attacker to achieve privilege escalation. With a CVSS score of 10.0, this vulnerability is easily exploitable over the network with no user interaction, leading to complete compromise of confidentiality, integrity, and availability. Despite its critical severity, there is currently no known public exploit code, active exploitation, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
12.3.1611.0CPE matchmatch criteria
cpe:2.3:a:browser.360:safe_browser:12.3.1611.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

10.0CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.32%
Probability of exploitation in next 30 days
EPSS Percentile
67.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0132 is in the 54th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

memorycorruptor.blogspot.com / p/vulnerabilities-disclosures.html
Third Party Advisory
pastebin.com / qDedtZf3
ExploitThird Party Advisory
youtube.com / channel/UCLJ6fZxUqbmPe4jiwC6o4hg
Exploit