CVSS 3.1
5.5 mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:NCVE-2020-9320
Medium (5.5) in avira. EPSS 2.9% chance of exploitation in the next 30 days.
Avira AV Engine before 8.3.54.138 allows virus-detection bypass via a crafted ISO archive. This affects versions before 8.3.54.138 of Antivirus for Endpoint, Antivirus for Small Business, Exchange Security (Gateway), Internet Security Suite for Windows, Prime, Free Security Suite for Windows, and Cross Platform Anti-malware SDK. NOTE: Vendor asserts that vulnerability does not exist in product
Severity
- EPSS
- 2.9% chance of exploitation in the next 30 days; higher than 86% of CVEs (scores of 2026-10-31)
- CWE
- CWE-434
- Published
- Modified
- Record from
- the NVD, synced
Affected
- avira:anti-malware_sdk
- avira:antivirus_server
- avira:avira_antivirus_for_endpoint
- avira:avira_antivirus_for_small_business
- avira:avira_exchange_security
- avira:avira_free_security_suite
- avira:avira_internet_security_suite
- avira:avira_prime
References
- http://packetstormsecurity.com/files/156472/AVIRA-Generic-Malformed-Container-Bypass.html
- http://seclists.org/fulldisclosure/2020/Feb/31
- https://blog.zoller.lu/p/from-low-hanging-fruit-department-avira.html
- https://www.zoller.lu/%5BTZO-01-2020%5D%20AVIRA%20Generic%20Bypass%20ISO.pdf
- http://packetstormsecurity.com/files/156472/AVIRA-Generic-Malformed-Container-Bypass.html