CVE-2023-26238

An issue was discovered in WatchGuard EPDR 8.0.21.0002. It is possible to enable or disable defensive capabilities by sending a crafted message to a named pipe.

Published: 2023-10-04 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-26238 is rated Low Risk (24.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.16%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-26238

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.06% 0.16% +0.10%
2 2025-03-17 0.04% 0.06% +0.02%
3 2023-10-05 — 0.04% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-26238

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 1.8 3.6 [email protected]

Weakness enumeration for CVE-2023-26238

Affected software / configurations for CVE-2023-26238

Vendor Product Version Raw CPE
watchguard epp_firmware < 8.00.22.0010 cpe:2.3:o:watchguard:epp_firmware:*:*:*:*:*:*:*:*
watchguard edr_firmware < 8.00.22.0010 cpe:2.3:o:watchguard:edr_firmware:*:*:*:*:*:*:*:*
watchguard epdr_firmware < 8.00.22.0010 cpe:2.3:o:watchguard:epdr_firmware:*:*:*:*:*:*:*:*
watchguard panda_ad360_firmware < 8.00.22.0010 cpe:2.3:o:watchguard:panda_ad360_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-26238

cvelogic Threat Intelligence