How severe is CVE-2026-40852?

CVE-2026-40852 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-40852 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-40852?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-40852 have an EU (EUVD) identifier?

Yes. CVE-2026-40852 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32151.

When was CVE-2026-40852 published?

CVE-2026-40852 was published on 2026-05-27 and last updated on 2026-06-17.

CVE-2026-40852

CVE-2026-40852 is a high-severity vulnerability with a CVSS 3.x base score of 7.2. 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.2)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-32151
Weakness: CWE-78
Published: 2026-05-27
Last modified: 2026-06-17

Description

A highly authenticated attacker can alter the config generator injecting a payload into future created configurations. The device is not correctly checking this configuration value before passing it to an system execute leading to code execution. This can result in a total loss of confidentiality, integrity and availability.

Frequently asked questions

What is CVE-2026-40852?: A highly authenticated attacker can alter the config generator injecting a payload into future created configurations. The device is not correctly checking this configuration value before passing it to an system execute leading to code execution. This can result in a total loss of confidentiality, integrity and availability.
How severe is CVE-2026-40852?: CVE-2026-40852 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-40852 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-40852?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-40852 have an EU (EUVD) identifier?: Yes. CVE-2026-40852 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32151.
When was CVE-2026-40852 published?: CVE-2026-40852 was published on 2026-05-27 and last updated on 2026-06-17.

References

https://www.certvde.com/en/advisories/VDE-2026-054/

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