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.

published 2023-04-19 3 y ago modified 2026-06-17 4 mo ago also EUVD-2021-20644

cvss: 7.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits: 0; none known

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 21 mo ago (2025-02-05)

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

memorycorruptor.blogspot.com https://MemoryCorruptor.blogspot.com/p/vulnerabilities-disclosures.html referenced PoC, tagged "exploit" by a source, unverified
youtube.com https://www.youtube.com/channel/UCLJ6fZxUqbmPe4jiwC6o4hg/ referenced PoC, tagged "exploit" by a source, unverified
pastebin.com https://pastebin.com/fsLDebg5 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness

CWE-120 Buffer Copy without Checking Size of Input

References

memorycorruptor.blogspot.com /p/vulnerabilities-disclosures.html
exploit, third-party-advisory
youtube.com /channel/UCLJ6fZxUqbmPe4jiwC6o4hg/
exploit
pastebin.com /fsLDebg5
exploit, third-party-advisory

Sources

CVE List CVE-2021-33973
NVD CVE-2021-33973

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary