What’s Vulnerable › Vulnerabilities

CVE-2023-5760: Time-of-check to time-of-use (TOCTOU) bug leads to full local privilege escalation.

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-11-08 · updated 2026-06-17
• Weakness: CWE-367

Description

A time-of-check to time-of-use (TOCTOU) bug in handling of IOCTL (input/output control) requests. This TOCTOU bug leads to an out-of-bounds write vulnerability which can be further exploited, allowing an attacker to gain full local privilege escalation on the system.This issue affects Avast/Avg Antivirus: 23.8.

Affected products

• Avast/Avg Antivirus: 23.8

References

• https://support.norton.com/sp/static/external/tools/security-advisories.html
• https://support.norton.com/sp/static/external/tools/security-advisories.html

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