How severe is CVE-2025-40545?

CVE-2025-40545 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-40545 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-40545?

CVE-2025-40545 affects Solarwinds Observability Self-hosted. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-40545?

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

Does CVE-2025-40545 have an EU (EUVD) identifier?

Yes. CVE-2025-40545 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-197926.

When was CVE-2025-40545 published?

CVE-2025-40545 was published on 2025-11-18 and last updated on 2026-06-17.

CVE-2025-40545

CVE-2025-40545 is a medium-severity vulnerability in Solarwinds Observability Self-hosted with a CVSS 3.x base score of 4.8. 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-601.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-197926
Weakness: CWE-601
Affected product: Solarwinds Observability Self-hosted
Published: 2025-11-18
Last modified: 2026-06-17

Description

SolarWinds Observability Self-Hosted is susceptible to an open redirection vulnerability. The URL is not properly sanitized, and an attacker could manipulate the string to redirect a user to a malicious site. The attack complexity is high, and authentication is required.

Frequently asked questions

What is CVE-2025-40545?: SolarWinds Observability Self-Hosted is susceptible to an open redirection vulnerability. The URL is not properly sanitized, and an attacker could manipulate the string to redirect a user to a malicious site. The attack complexity is high, and authentication is required.
How severe is CVE-2025-40545?: CVE-2025-40545 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-40545 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-40545?: CVE-2025-40545 affects Solarwinds Observability Self-hosted. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-40545?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-40545 have an EU (EUVD) identifier?: Yes. CVE-2025-40545 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-197926.
When was CVE-2025-40545 published?: CVE-2025-40545 was published on 2025-11-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:solarwinds:observability_self-hosted:*:*:*:*:*:*:*:*

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