How severe is CVE-2026-35504?

CVE-2026-35504 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-35504 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-35504?

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

Does CVE-2026-35504 have an EU (EUVD) identifier?

Yes. CVE-2026-35504 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29830.

When was CVE-2026-35504 published?

CVE-2026-35504 was published on 2026-05-12 and last updated on 2026-06-17.

CVE-2026-35504

CVE-2026-35504 is a medium-severity vulnerability 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. The underlying weakness is classified as CWE-93.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v4: 5.1
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29830
Weakness: CWE-93
Published: 2026-05-12
Last modified: 2026-06-17

Description

PowerSYSTEM Center email notification service is affected by a CRLF injection vulnerability when using SMTPS communication.

Frequently asked questions

What is CVE-2026-35504?: PowerSYSTEM Center email notification service is affected by a CRLF injection vulnerability when using SMTPS communication.
How severe is CVE-2026-35504?: CVE-2026-35504 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-35504 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-35504?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-35504 have an EU (EUVD) identifier?: Yes. CVE-2026-35504 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29830.
When was CVE-2026-35504 published?: CVE-2026-35504 was published on 2026-05-12 and last updated on 2026-06-17.

References

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