CVE-2026-93864 Details
Description
A link following vulnerability in WatchGuard Fireware OS’s firewall daemon allows a local attacker with code execution as a low-privileged system process to overwrite arbitrary files with root privileges, and to tamper with firewall IP set data, by planting a crafted file system object and triggering a list update. Written content is partially constrained.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No CVSS 3.x data is available for this CVE.
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Oct 29, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://psirt.watchguard.com/CVE-2026-93864 | WatchGuard Technologies, Inc. |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | WatchGuard Technologies, Inc. |
| CWE-377 | Insecure Temporary File | WatchGuard Technologies, Inc. |
| CWE-59 | Improper Link Resolution Before File Access ('Link Following') | WatchGuard Technologies, Inc. |
| CWE-73 | External Control of File Name or Path | WatchGuard Technologies, Inc. |
Affected Products
No affected product data is available for this CVE.
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 29, 2026 | CVE Modified | CISA-ADP |
| Oct 29, 2026 | CVE Modified | CISA-ADP |
| Oct 27, 2026 | New CVE Received | WatchGuard Technologies, Inc. |