CVE-2020-10860: avast antivirus Out-of-bounds Write
CVSS: 7.5v3.1HighModified
Published 01-04-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-10860 is a high (CVSS 7.5) Out-of-bounds Write vulnerability in avast antivirus. EPSS estimates a 2.08% chance of exploitation in the next 30 days, higher than 81.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
2.08%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Timeline
- 01-04-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in Avast Antivirus before 20. An Arbitrary Memory Address Overwrite vulnerability in the aswAvLog Log Library results in Denial of Service of the Avast Service (AvastSvc.exe).
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.08%
Chance of exploitation in the next 30 days
Percentile
81%
Versus all other CVEs
30-day change
0.00 pp
From 2.08% on 20-09-2026
20-09-202620-10-2026
EPSS score2.08%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundAvast Multiple Vulnerability Disclosure
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Avast1 product
- antivirus< 20.0
1 vendor · 1 product
References
3 links- github.com/umarfarook882/Avast_Multiple_Vulnerability_Disclosure/blob/master/README.mdX Refsource MISCExploitThird Party Advisory