What is the CVSS score of CVE-2025-49753?

CVE-2025-49753 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Windows are affected by CVE-2025-49753?

CVE-2025-49753 is a critical remote code execution vulnerability in Windows RRAS that enables unauthenticated network attackers to gain arbitrary code execution on affected systems with a CVSS score…. A patch is available.

How to fix or mitigate CVE-2025-49753?

Within 24 hours: Identify and inventory all Windows servers running RRAS using network scanning tools and Windows Server Configuration Manager; disable RRAS on non-essential systems. Within 7 days: Apply vendor-released patch to all affected Windows RRAS installations per Microsoft security advisory; prioritize internet-facing and domain controller systems. Within 30 days: Verify patch deployment across all systems using WSUS or endpoint management tools; conduct post-patch vulnerability rescans to confirm remediation.

Windows CVE-2025-49753

EUVD-2025-20618 HIGH

Heap-based Buffer Overflow (CWE-122)

2025-07-08 secure@microsoft.com

Windows Buffer Overflow Heap Overflow Microsoft Windows Server 2008 Windows Server 2012 Windows Server 2016 Windows Server 2019 Windows Server 2022 Windows Server 2022 23h2 Windows Server 2025

8.8

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Updated

Apr 16, 2026 - 06:28 EUVD-patch-fix

executive_summary

Re-analysis Queued

Apr 16, 2026 - 05:29 backfill_euvd_patch

patch_released

Patch available

Apr 16, 2026 - 05:29 EUVD

10.0.17763.7558,6.3.9600.22676,6.2.9200.25573

EUVD ID Assigned

Mar 16, 2026 - 04:21 euvd

EUVD-2025-20618

Analysis Generated

Mar 16, 2026 - 04:21 vuln.today

CVE Published

Jul 08, 2025 - 17:16 nvd

HIGH 8.8

DescriptionNVD

Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

Analysis

Heap-based buffer overflow in Windows Routing and Remote Access Service (RRAS) allows an unauthorized attacker to execute code over a network.

Technical ContextAI

A buffer overflow occurs when data written to a buffer exceeds its allocated size, potentially overwriting adjacent memory and corrupting program state. This vulnerability is classified as Heap-based Buffer Overflow (CWE-122).

RemediationAI

Use memory-safe languages or bounds-checked functions. Enable ASLR, DEP/NX, and stack canaries. Apply vendor patches promptly.

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CVE-2025-49753 vulnerability details – vuln.today

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Windows CVE-2025-49753

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

Analysis

Technical ContextAI

RemediationAI

More from same product – last 7 days

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External POC / Exploit Code