How severe is CVE-2023-35857?

CVE-2023-35857 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-35857 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-35857?

CVE-2023-35857 affects Siren Investigate. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-35857?

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

When was CVE-2023-35857 published?

CVE-2023-35857 was published on 2023-06-19 and last updated on 2026-06-17.

CVE-2023-35857

CVE-2023-35857 is a critical-severity vulnerability in Siren Investigate with a CVSS 3.x base score of 9.8. 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-613.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-613
Affected product: Siren Investigate
Published: 2023-06-19
Last modified: 2026-06-17

Description

In Siren Investigate before 13.2.2, session keys remain active even after logging out.

Frequently asked questions

What is CVE-2023-35857?: In Siren Investigate before 13.2.2, session keys remain active even after logging out.
How severe is CVE-2023-35857?: CVE-2023-35857 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-35857 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-35857?: CVE-2023-35857 affects Siren Investigate. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-35857?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-35857 published?: CVE-2023-35857 was published on 2023-06-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:siren:investigate:*:*:*:*:*:*:*:*

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