Epp FirmwareOperating system · Watchguard

CVE-2023-26237

MEDIUM · 6.7 CVSS v3.1 Developing Published 2023-10-05
Fix available
A fix is available. Upgrade to 8.00.22.0010 or later.
See remediation →
69/100
Remediation priority · Elevated
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An issue was discovered in WatchGuard EPDR 8.0.21.0002. It is possible to bypass the defensive capabilities by adding a registry key as SYSTEM.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · low confidence
Developing — this CVE was published recently and its authoritative NVD entry is still being established, so we're holding a technical summary until the source data settles rather than publish something unreliable. Re-checking after 2026-08-01.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Epp FirmwareOperating system
Affected:< 8.00.22.0010
Edr FirmwareOperating system
Affected:< 8.00.22.0010
Epdr FirmwareOperating system
Affected:< 8.00.22.0010
Panda Ad360 FirmwareOperating system
Affected:< 8.00.22.0010

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 8.00.22.0010 or later
Fixed in 8.00.22.0010
Recommended fix High confidence

WatchGuard EPDR/EPP/EDR/Panda Ad360 firmware version 8.00.22.0010 or later

  1. Obtain the fixed firmware version 8.00.22.0010 or later from the official WatchGuard support portal (www.watchguard.com)
  2. Back up the current EPDR/EPP/EDR configuration before proceeding with the upgrade
  3. Apply the firmware upgrade following WatchGuard's standard upgrade procedure for the respective product (Epp, Edr, Epdr, or Panda Ad360)
  4. Reboot the device as required by the firmware update process
  5. Verify the upgrade was successful by checking the firmware version in the product console
  6. Confirm that defensive capabilities are functioning properly after the upgrade
Caveat Review WatchGuard release notes for any configuration or compatibility changes between 8.0.21.0002 and 8.00.22.0010 before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,600. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-26237 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data