CVE-2023-5760: avast avg_antivirus
CVSS: 8.2v3.1HighModified
Published 08-11-2023Last modified 03-09-2024
Vulnerability summary
CVE-2023-5760 is a high (CVSS 8.2) vulnerability in avast avg_antivirus. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.1% of scored vulnerabilities.
CVSS score
8.2/10
010
High · v3.1 (CVE.org)EPSS score
0.19%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 08-11-2023PublishedVulnerability first disclosed.
- 03-09-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 8.2Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:HSources2 sources · 7.0–8.2
- NVDNIST7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
0.19%
Chance of exploitation in the next 30 days
Percentile
8%
Versus all other CVEs
30-day change
0.00 pp
From 0.19% on 20-09-2026
20-09-202620-10-2026
EPSS score0.19%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Avast1 product
- avg_antivirus23.8
Avast/avg1 product
2 vendors · 2 products
References
1 links- support.norton.com/sp/static/external/tools/security-advisories.htmlThird Party Advisory