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CVE-2018-20331

24
FAUCET Score

CVE-2018-20331 describes a Kernel Pool Buffer Overflow vulnerability in Antiy AVL ATool v1.0.0.22, specifically within the ssdt.sys kernel driver's handling of IOCTL 0x80002004. This flaw, caused by insufficient validation of user-supplied data length, allows a local attacker with low-privileged code execution to achieve arbitrary code execution in the kernel context, leading to privilege escalation or denial of service. Rated 7.8 HIGH on CVSS, the attack requires local access but has low complexity. There is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), no evidence of active exploitation, and minimal community or media discussion.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.0.22CPE matchmatch criteria
cpe:2.3:a:antiy:anti_virus_lab_atool:1.0.0.22:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.61%
Probability of exploitation in next 30 days
EPSS Percentile
45.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0061 is in the 84th percentile among its peer group of 16,974 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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

packetstormsecurity.com / files/150900
ExploitThird Party AdvisoryVDB Entry