CVE-2026-20216
Last modified
CVE-2026-20216 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability in the InstallShield file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to improper handling of temporary resources during file scanning. An attacker could exploit this vulnerability by submitting a crafted InstallShield file to be scanned by ClamAV on an affected device. EPSS estimates a 0.39% chance of exploitation in the next 30 days.
Description
A vulnerability in the InstallShield file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to improper handling of temporary resources during file scanning. An attacker could exploit this vulnerability by submitting a crafted InstallShield file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the ClamAV scanning process and temporarily consume available system resources, resulting in a DoS condition on the affected software.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Secure Endpoint | < 1.27.2 |
| Cisco | Secure Endpoint | < 1.29.0 |
| Cisco | Secure Endpoint | < 8.6.2 |
| Clamav | Clamav | < 1.4.5 |
| Clamav | Clamav | >= 1.5.0, < 1.5.3 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-20216?
How severe is CVE-2026-20216?
How do I fix CVE-2026-20216?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-20209A vulnerability in the web UI of Cisco Catalyst SD-WAN Manag…5.4
- CVE-2026-2021The Slideshow Gallery LITE plugin for WordPress is vulnerabl…6.4
- CVE-2026-20210A vulnerability in the web UI of Cisco Catalyst SD-WAN Manag…5.4
- CVE-2026-20213A vulnerability in the PE file format parser of ClamAV could…7.5
- CVE-2026-20214A vulnerability in the FSG file format parser of ClamAV coul…7.5
- CVE-2026-20215A vulnerability in the 7z file format parser of ClamAV could…7.5
- CVE-2026-20217A vulnerability in the PESpin file format parser of ClamAV c…7.5
- CVE-2026-20219A vulnerability in the REST API of Cisco Slido could have al…5.4
- CVE-2026-2022The Smart Forms plugin for WordPress is vulnerable to unauth…4.3
- CVE-2026-20220A vulnerability in the web-based management interface of Cis…6.3
- CVE-2026-20223A vulnerability in the access validation of internal RE…10
- CVE-2026-20224A vulnerability in the web UI of Cisco Catalyst SD-WAN Manag…8.6
Are you affected by CVE-2026-20216?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST