How severe is CVE-2025-3831?

CVE-2025-3831 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-3831 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.

What products are affected by CVE-2025-3831?

CVE-2025-3831 affects Checkpoint Harmony Sase. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-3831?

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-2025-3831 have an EU (EUVD) identifier?

Yes. CVE-2025-3831 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-24256.

When was CVE-2025-3831 published?

CVE-2025-3831 was published on 2025-08-12 and last updated on 2026-06-17.

CVE-2025-3831

CVE-2025-3831 is a high-severity vulnerability in Checkpoint Harmony Sase with a CVSS 3.x base score of 8.1. 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-200.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-24256
Weakness: CWE-200
Affected product: Checkpoint Harmony Sase
Published: 2025-08-12
Last modified: 2026-06-17

Description

Log files uploaded during troubleshooting by the Harmony SASE agent may have been accessible to unauthorized parties.

Frequently asked questions

What is CVE-2025-3831?: Log files uploaded during troubleshooting by the Harmony SASE agent may have been accessible to unauthorized parties.
How severe is CVE-2025-3831?: CVE-2025-3831 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-3831 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.
What products are affected by CVE-2025-3831?: CVE-2025-3831 affects Checkpoint Harmony Sase. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-3831?: 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-2025-3831 have an EU (EUVD) identifier?: Yes. CVE-2025-3831 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-24256.
When was CVE-2025-3831 published?: CVE-2025-3831 was published on 2025-08-12 and last updated on 2026-06-17.

References

https://support.checkpoint.com/results/sk/sk183761

Affected products (1)

cpe:2.3:a:checkpoint:harmony_sase:-:*:*:*:*:*:*:*

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