How severe is CVE-2023-26238?

CVE-2023-26238 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-26238 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26238?

CVE-2023-26238 primarily affects Watchguard Epp Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-26238?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-26238 published?

CVE-2023-26238 was published on 2023-10-05 and last updated on 2026-06-17.

CVE-2023-26238

CVE-2023-26238 is a medium-severity vulnerability in Watchguard Epp Firmware with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Watchguard Epp Firmware
Published: 2023-10-05
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2023-26238?: CVE-2023-26238 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-26238 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26238?: CVE-2023-26238 primarily affects Watchguard Epp Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-26238?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-26238 published?: CVE-2023-26238 was published on 2023-10-05 and last updated on 2026-06-17.

References

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2023-00006

Affected products (4)

cpe:2.3:o:watchguard:epp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:watchguard:edr_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:watchguard:epdr_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:watchguard:panda_ad360_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Watchguard Epp Firmware

CVE-2023-26236 — High (CVSS 7.8): An issue was discovered in WatchGuard EPDR 8.0.21.0002. Due to a weak implementation of message handling between…
CVE-2023-26237 — Medium (CVSS 6.7): An issue was discovered in WatchGuard EPDR 8.0.21.0002. It is possible to bypass the defensive capabilities by adding a…
CVE-2023-26239 — Medium (CVSS 5.5): An issue was discovered in WatchGuard EPDR 8.0.21.0002. Due to a weak implementation of a password check, it is…

All CVEs affecting Watchguard Epp Firmware →