CVE-2025-33074
CVE-2025-33074 is a high-severity vulnerability in Microsoft Azure Functions with a CVSS 3.x base score of 7.5. 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-347.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 0% (37th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-12758
- Weakness: CWE-347
- Affected product: Microsoft Azure Functions
- Published:
- Last modified:
Description
Improper verification of cryptographic signature in Microsoft Azure Functions allows an authorized attacker to execute code over a network.
Frequently asked questions
- What is CVE-2025-33074?
- Improper verification of cryptographic signature in Microsoft Azure Functions allows an authorized attacker to execute code over a network.
- How severe is CVE-2025-33074?
- CVE-2025-33074 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2025-33074 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-33074?
- CVE-2025-33074 affects Microsoft Azure Functions. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-33074?
- 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-2025-33074 have an EU (EUVD) identifier?
- Yes. CVE-2025-33074 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12758.
- When was CVE-2025-33074 published?
- CVE-2025-33074 was published on 2025-04-30 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:microsoft:azure_functions:-:*:*:*:*:*:*:*
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