How severe is CVE-2023-26237?

CVE-2023-26237 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-26237 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26237?

CVE-2023-26237 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-2023-26237?

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

When was CVE-2023-26237 published?

CVE-2023-26237 was published on 2023-10-05 and last updated on 2026-06-17.

CVE-2023-26237

CVE-2023-26237 is a medium-severity vulnerability in Watchguard Epp Firmware with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-639
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 bypass the defensive capabilities by adding a registry key as SYSTEM.

Frequently asked questions

What is CVE-2023-26237?: 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.
How severe is CVE-2023-26237?: CVE-2023-26237 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-26237 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26237?: CVE-2023-26237 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-2023-26237?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-26237 published?: CVE-2023-26237 was published on 2023-10-05 and last updated on 2026-06-17.

References

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2023-00005

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:*:*:*:*:*:*:*:*

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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-2023-26239 — 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…
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