How severe is CVE-2025-59503?

CVE-2025-59503 has a CVSS 3.x base score of 10.0, 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-2025-59503 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-59503?

CVE-2025-59503 affects Microsoft Azure Compute Resource Provider. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-59503?

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.

Does CVE-2025-59503 have an EU (EUVD) identifier?

Yes. CVE-2025-59503 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35744.

When was CVE-2025-59503 published?

CVE-2025-59503 was published on 2025-10-23 and last updated on 2026-06-17.

CVE-2025-59503

CVE-2025-59503 is a critical-severity vulnerability in Microsoft Azure Compute Resource Provider with a CVSS 3.x base score of 10.0. 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-918.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-35744
Weakness: CWE-918
Affected product: Microsoft Azure Compute Resource Provider
Published: 2025-10-23
Last modified: 2026-06-17

Description

Server-side request forgery (ssrf) in Azure Compute Gallery allows an unauthorized attacker to elevate privileges over a network.

Frequently asked questions

What is CVE-2025-59503?: Server-side request forgery (ssrf) in Azure Compute Gallery allows an unauthorized attacker to elevate privileges over a network.
How severe is CVE-2025-59503?: CVE-2025-59503 has a CVSS 3.x base score of 10.0, 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-2025-59503 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-59503?: CVE-2025-59503 affects Microsoft Azure Compute Resource Provider. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-59503?: 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.
Does CVE-2025-59503 have an EU (EUVD) identifier?: Yes. CVE-2025-59503 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35744.
When was CVE-2025-59503 published?: CVE-2025-59503 was published on 2025-10-23 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59503

Affected products (1)

cpe:2.3:a:microsoft:azure_compute_resource_provider:-:*:*:*:*:*:*:*

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