How severe is CVE-2026-2402?

CVE-2026-2402 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2026-2402 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-2402?

CVE-2026-2402 affects Schneider-electric Powerchute Serial Shutdown. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-2402?

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

Does CVE-2026-2402 have an EU (EUVD) identifier?

Yes. CVE-2026-2402 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22288.

When was CVE-2026-2402 published?

CVE-2026-2402 was published on 2026-04-14 and last updated on 2026-06-17.

CVE-2026-2402

CVE-2026-2402 is a medium-severity vulnerability in Schneider-electric Powerchute Serial Shutdown with a CVSS 3.x base score of 5.3. 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-307.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 6.9
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-22288
Weakness: CWE-307
Affected product: Schneider-electric Powerchute Serial Shutdown
Published: 2026-04-14
Last modified: 2026-06-17

Description

CWE-307 Improper Restriction of Excessive Authentication Attempts vulnerability exists that would allow an attacker to gain access to the user account by performing an arbitrary number of authentication attempts with different credentials on a sequence of requests to multiple endpoints.

Frequently asked questions

What is CVE-2026-2402?: CWE-307 Improper Restriction of Excessive Authentication Attempts vulnerability exists that would allow an attacker to gain access to the user account by performing an arbitrary number of authentication attempts with different credentials on a sequence of requests to multiple endpoints.
How severe is CVE-2026-2402?: CVE-2026-2402 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2026-2402 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-2402?: CVE-2026-2402 affects Schneider-electric Powerchute Serial Shutdown. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-2402?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-2402 have an EU (EUVD) identifier?: Yes. CVE-2026-2402 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22288.
When was CVE-2026-2402 published?: CVE-2026-2402 was published on 2026-04-14 and last updated on 2026-06-17.

References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf

Affected products (1)

cpe:2.3:a:schneider-electric:powerchute_serial_shutdown:*:*:*:*:*:*:*:*

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