CVE-2026-20216
published 2026-07-01CVE-2026-20216: A vulnerability in the InstallShield file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition on an affected…
PriorityP348high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.39%
31.1th percentile
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.
Affected
152 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
| cisco | cisco_secure_endpoint | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vendor_redhat7.5HIGH
vendor_ubuntu7.5HIGH
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VulDB
Cisco Secure Endpoint up to 8.4.5.30483 ClamAV allocation of resources (cisco-sa-clamav-88cFYyxR)
vuldb·2026-07-01·CVSS 7.5
CVE-2026-20216 [HIGH] Cisco Secure Endpoint up to 8.4.5.30483 ClamAV allocation of resources (cisco-sa-clamav-88cFYyxR)
A vulnerability described as critical has been identified in Cisco Secure Endpoint. This issue affects some unknown processing of the component ClamAV. Such manipulation leads to allocation of resources.
This vulnerability is uniquely identified as CVE-2026-20216. The attack can be launched remotely. No exploit exists.
Upgrading the affected component is recommended.
GHSA
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.
ghsa_unreviewed·2026-07-01
CVE-2026-20216 [HIGH] CWE-770 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.
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.
Ubuntu
ClamAV vulnerabilities
vendor_ubuntu·2026-07-08·CVSS 7.5
CVE-2026-20215 [HIGH] ClamAV vulnerabilities
Title: ClamAV vulnerabilities
Summary: Several security issues were fixed in ClamAV.
It was discovered that ClamAV incorrectly handled certain PE files. A
remote attacker could possibly use this issue to cause ClamAV to crash,
resulting in a denial of service. (CVE-2026-20213, CVE-2026-20214,
CVE-2026-20217)
It was discovered that ClamAV incorrectly handled certain 7z archive
files. A remote attacker could possibly use this issue to cause ClamAV to
crash, resulting in a denial of service. (CVE-2026-20215)
It was discovered that ClamAV incorrectly handled extraction limits for
certain InstallShield archives. A remote attacker could possibly use this
issue to cause ClamAV to use excessive resources, leading to a denial of
service. (CVE-2026-20216)
It was discovered that ClamAV incorrect
Red Hat
ClamAV: ClamAV: Denial of Service via crafted InstallShield file
vendor_redhat·2026-07-01·CVSS 7.5
CVE-2026-20216 [HIGH] CWE-770 ClamAV: ClamAV: Denial of Service via crafted InstallShield file
ClamAV: ClamAV: Denial of Service via crafted InstallShield file
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.
A flaw was found in ClamAV's InstallShield file format parser. An unauthenticated, remote attacker could exploit this vulnerability by submitting a sp
Suricata
ET WEB_SPECIFIC_APPS FLIR controllerFlirSystem.php dns Parameter Command Injection Attempt (CVE-2017-20216)
suricata·2026-01-08·CVSS 9.3
CVE-2017-20216 [CRITICAL] ET WEB_SPECIFIC_APPS FLIR controllerFlirSystem.php dns Parameter Command Injection Attempt (CVE-2017-20216)
ET WEB_SPECIFIC_APPS FLIR controllerFlirSystem.php dns Parameter Command Injection Attempt (CVE-2017-20216)
Rule: alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS FLIR controllerFlirSystem.php dns Parameter Command Injection Attempt (CVE-2017-20216)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/maintenance/controllerFlirSystem.php|3f|"; startswith; fast_pattern; pcre:"/(?:customDateTime|dhcpMode|dns|interface|tz|server(?:s|[01]))[^\x26]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/"; reference:url,www.zeroscience.mk/codes/flir0.txt; reference:cve,2017-20216; classtype:attempted-admin; sid:2066626; rev:1; metadata:affected_product FLIR, attack_target Networking_Equipment, tls_state plaintext, created_at 2026_0
No public exploits indexed.
Bugzilla
CVE-2026-20216 clamav: ClamAV: Denial of Service via crafted InstallShield file [epel-all]
bugzilla·2026-07-03·CVSS 7.5
CVE-2026-20216 [HIGH] CVE-2026-20216 clamav: ClamAV: Denial of Service via crafted InstallShield file [epel-all]
CVE-2026-20216 clamav: ClamAV: Denial of Service via crafted InstallShield file [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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 te
Bugzilla
CVE-2026-20216 clamav: ClamAV: Denial of Service via crafted InstallShield file [fedora-all]
bugzilla·2026-07-03·CVSS 7.5
CVE-2026-20216 [HIGH] CVE-2026-20216 clamav: ClamAV: Denial of Service via crafted InstallShield file [fedora-all]
CVE-2026-20216 clamav: ClamAV: Denial of Service via crafted InstallShield file [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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
Bugzilla
CVE-2026-20216 ClamAV: ClamAV: Denial of Service via crafted InstallShield file
bugzilla·2026-07-01·CVSS 7.5
CVE-2026-20216 [HIGH] CVE-2026-20216 ClamAV: ClamAV: Denial of Service via crafted InstallShield file
CVE-2026-20216 ClamAV: ClamAV: Denial of Service via crafted InstallShield file
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.
Hackernews
⚡ Weekly Recap: Proxy Botnets, Browser Ransomware, AI Agent Tricks, Fake PoC Malware and More
blogs_hackernews·2026-07-06
CVE-2026-48276 ⚡ Weekly Recap: Proxy Botnets, Browser Ransomware, AI Agent Tricks, Fake PoC Malware and More
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## ⚡ Weekly Recap: Proxy Botnets, Browser Ransomware, AI Agent Tricks, Fake PoC Malware and More
A streaming box should not need a threat model. Neither should a username field, a demo repo, a reset flow, or a browser permission prompt. That is the irritating part this week: the risky pieces were ordinary.
Home devices became a routing cover. Clean code pulled dirt from a dependency. Identity shortcuts aged badly. AI systems trusted the wrong instructions. Same soft spot throughout: trust placed one layer too early.
Below is the full recap, since this is apparently what counted as a normal week.
## ⚡ Threat of the Week
Net
2026-07-01
Published