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CVE-2025-33064VulnerabilityPublished Updated

CVE-2025-33064: Microsoft Windows 10 Version 1507 · Heap-based Buffer Overflow

Affects Microsoft Windows 10 Version 1507Source CVE Database V5

0

Not known to be exploited · CVSS 8.8 High.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
1.3% chance of exploitation in 30 days – higher than 70% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Jun 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
Microsoft Windows 10 Version 1507Affected
  • =10.0.10240.0
Fixed in–

AI-suggested

To mitigate CVE-2025-33064, organizations should take immediate and specific actions beyond generic advice: 1) Disable the Routing and Remote Access Service (RRAS) on Windows 10 Version 1507 systems if it is not essential to operations. 2) Restrict network access to RRAS services using firewalls and network segmentation to limit exposure only to trusted hosts and networks. 3) Monitor network traffic for unusual or malformed packets targeting RRAS ports to detect potential exploitation attempts. 4) Prioritize upgrading affected systems to a supported and patched version of Windows 10 or later, as this version is legacy and no patches are currently available. 5) Implement strict access controls and least privilege principles for accounts authorized to use RRAS. 6) Employ endpoint detection and response (EDR) tools capable of identifying anomalous behavior related to RRAS exploitation. 7) Stay alert for official patches or security advisories from Microsoft and apply them promptly once released. These targeted mitigations reduce the attack surface and improve detection capabilities while awaiting official fixes.

Description

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

References

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