How severe is CVE-2025-49739?

CVE-2025-49739 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-49739 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-2025-49739?

CVE-2025-49739 primarily affects Microsoft Visual Studio. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-49739?

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-2025-49739 have an EU (EUVD) identifier?

Yes. CVE-2025-49739 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20538.

When was CVE-2025-49739 published?

CVE-2025-49739 was published on 2025-07-08 and last updated on 2026-06-17.

CVE-2025-49739

CVE-2025-49739 is a high-severity vulnerability in Microsoft Visual Studio with a CVSS 3.x base score of 8.8. 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-59.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-20538
Weakness: CWE-59
Affected product: Microsoft Visual Studio
Published: 2025-07-08
Last modified: 2026-06-17

Description

Improper link resolution before file access ('link following') in Visual Studio allows an unauthorized attacker to elevate privileges over a network.

Frequently asked questions

What is CVE-2025-49739?: Improper link resolution before file access ('link following') in Visual Studio allows an unauthorized attacker to elevate privileges over a network.
How severe is CVE-2025-49739?: CVE-2025-49739 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-49739 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-2025-49739?: CVE-2025-49739 primarily affects Microsoft Visual Studio. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-49739?: 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-2025-49739 have an EU (EUVD) identifier?: Yes. CVE-2025-49739 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20538.
When was CVE-2025-49739 published?: CVE-2025-49739 was published on 2025-07-08 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49739

Affected products (4)

cpe:2.3:a:microsoft:visual_studio:2015:update3:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*

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