How severe is CVE-2025-49688?

CVE-2025-49688 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-2025-49688 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-49688?

CVE-2025-49688 primarily affects Microsoft Windows Server 2012. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-49688?

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-2025-49688 have an EU (EUVD) identifier?

Yes. CVE-2025-49688 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20636.

When was CVE-2025-49688 published?

CVE-2025-49688 was published on 2025-07-08 and last updated on 2026-06-17.

CVE-2025-49688

CVE-2025-49688 is a high-severity vulnerability in Microsoft Windows Server 2012 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-415.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-20636
Weakness: CWE-415
Affected product: Microsoft Windows Server 2012
Published: 2025-07-08
Last modified: 2026-06-17

Description

Double free in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

Frequently asked questions

What is CVE-2025-49688?: Double free in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.
How severe is CVE-2025-49688?: CVE-2025-49688 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-2025-49688 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-49688?: CVE-2025-49688 primarily affects Microsoft Windows Server 2012. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-49688?: 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-2025-49688 have an EU (EUVD) identifier?: Yes. CVE-2025-49688 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-20636.
When was CVE-2025-49688 published?: CVE-2025-49688 was published on 2025-07-08 and last updated on 2026-06-17.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49688

Affected products (6)

cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*

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