CVE-2020-10867 json
An issue was discovered in Avast Antivirus before 20.
published 2020-04-01 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-3273
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.2%
- EPSS 2.2% chance of exploitation in 30 days, percentile 82%
- public exploits
- 0
- none known
Summary
An issue was discovered in Avast Antivirus before 20. The aswTask RPC endpoint for the TaskEx library in the Avast Service (AvastSvc.exe) allows attackers to bypass intended access restrictions on tasks from an untrusted process, when Self Defense is enabled.
Patch / fix
- avast antivirus 20.0
Exploit prediction
2.22% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/umarfarook882/Avast_Multiple_Vulnerability_Disclosure/blob/master/README.md referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-668 Exposure of Resource to Wrong Sphere
References
-
github.com
/umarfarook882/Avast_Multiple_Vulnerability_Disclosure/blob/master/README.md
exploit, third-party-advisory
-
forum.avast.com
/index.php?topic=232420.0
release-notes, vendor-advisory
-
forum.avast.com
/index.php?topic=232423.0
release-notes, vendor-advisory
Sources
- CVE List CVE-2020-10867
- NVD CVE-2020-10867
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