CVE-2020-20118
MEDIUM
5.5
CVSS Score
Published: July 11, 2023 at 12:00 AM UTC
Updated: July 9, 2026 at 12:16 AM UTC
1 product affected across 1 vendorAntivirus
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit
Description
Buffer Overflow vulnerability in Avast AntiVirus before v.19.7 allows a local attacker to cause a denial of service via a crafted request to the aswSnx.sys driver.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
PatchThird Party Advisory
Source: [email protected]
https://gitlab.com/yongchuank/avast-aswsnx-ioctl-82ac0060-oob-writeSSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-120
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