CVE-2023-26236

Local privilege escalation via crafted named-pipe parameters

Published Oct 5, 2023 · Updated Sep 20, 2024

Local privilege escalation in WatchGuard EPDR before 8.00.22.0010 allows local users to gain elevated privileges on Windows endpoints. The protection agent accepts crafted parameters delivered through interprocess messages on a named pipe without adequately enforcing privilege boundaries. Local access and low privileges are required; successful exploitation grants control with the protection agent's elevated rights.

CVSS severity7.8
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local privilege escalation in WatchGuard EPDR before 8.00.22.0010 allows local users to gain elevated privileges on Windows endpoints. The protection agent accepts crafted parameters delivered through interprocess messages on a named pipe without adequately enforcing privilege boundaries. Local access and low privileges are required; successful exploitation grants control with the protection agent's elevated rights.

The record

CVE
CVE-2023-26236
Published
Oct 5, 2023
Updated
Sep 20, 2024
Vendor
WatchGuard Technologies
Product
WatchGuard EPDR
Classifications
CWE-269, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 20, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.0.21.0002

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

WatchGuard Technologies · WatchGuard EPDRversion=8.0.21.0002

Published CVSS scores

7.8WatchGuard TechnologiesCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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