CVE-2016-3947
HighSummary
A heap-based buffer overflow in the Icmp6::Recv function in the pinger utility in Squid before 3.5.16 and 4.x before 4.0.8 allows remote servers to cause a denial of service or write sensitive information to log files via an ICMPv6 packet.
Risk Assessment
The organization may experience performance degradation or system failures, leading to service availability interruptions. Additionally, sensitive data may be exposed in log files.
Recommendation
It is recommended to update Squid to version 3.5.16 or 4.0.8 and to monitor logs for potential exploitation attempts.
Related vulnerabilities
- CVE-2026-125757Critical
mailcow: dockerized before 2026-11 contains a server-side template injection vulnerability that allows domain administrators to execute commands in the shared rspamd container by storing a malicious domain-wide footer. Attackers can embed a Jinja macro with an os.execute default value, rendered by the rspamd MOO_FOOTER prefilter, to read or inject mail for every tenant and disable filtering.
- CVE-2026-121683Critical
Missing authentication in Ivanti Cloud Services Application version 5.0.8 allows a remote unauthenticated attacker to add and delete arbitrary trusted EPM Core certificate entries.
- CVE-2026-121653Critical
SQL injection in the Core of Ivanti Endpoint Manager before version 2024 SU8 allows a remote unauthenticated attacker to achieve remote code execution.
- CVE-2026-108186Critical
Improper Input Validation in Zoom Workplace for Windows may allow an unauthenticated user to conduct an escalation of privilege via network access.
- CVE-2026-124917Critical
Sandbox escape vulnerability due to use-after-free in the Widget: Gtk component of Firefox. It may allow bypassing process isolation. The vulnerability was fixed in Firefox 160 and Firefox ESR 153.7.
- CVE-2026-124903Critical
A sandbox escape due to a use-after-free exists in the IPC component. This vulnerability was fixed in Firefox 160, Firefox ESR 115.45, and Firefox ESR 153.7.
- CVE-2026-124900Critical
A use-after-free in the DOM: Service Workers component of Firefox allows a sandbox escape. The vulnerability was fixed in Firefox 160.
- CVE-2026-124864Critical
Use-after-free vulnerability in the DOM: Service Workers component of Firefox enabling a sandbox escape. It may allow bypassing browser isolation mechanisms. Fixed in Firefox 160, Firefox ESR 115.45, and Firefox ESR 153.7.
- CVE-2026-124861Critical
Use-after-free vulnerability in the Audio/Video: cubeb component of Firefox enabling a sandbox escape. It may allow bypassing browser isolation mechanisms. Fixed in Firefox 160, Firefox ESR 115.45, and Firefox ESR 153.7.
- CVE-2026-124859Critical
Sandbox escape in the Storage: Cache API component of Firefox caused by incorrect boundary conditions. It may allow bypassing browser isolation mechanisms. Fixed in Firefox 160, Firefox ESR 115.45, and Firefox ESR 153.7.
Original NVD description (English source)
Heap-based buffer overflow in the Icmp6::Recv function in icmp/Icmp6.cc in the pinger utility in Squid before 3.5.16 and 4.x before 4.0.8 allows remote servers to cause a denial of service (performance degradation or transition failures) or write sensitive information to log files via an ICMPv6 packet.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS