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VulnerabilityPublished Updated

CVE-2025-59280: Microsoft Windows 10 Version 1507 · Improper Authentication

Affects Microsoft Windows 10 Version 1507Source CVE Database V5

0

Not known to be exploited · CVSS 3.1 Low.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
3.1Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 39% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Oct 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 26 Oct 2026.

What to do

Affected software

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

AI-suggested

  1. Upgrade affected systems to a supported and fully patched version of Windows 10 or later, as Windows 10 Version 1507 is out of mainstream support and lacks security updates.
  2. Restrict SMB client network access through firewall rules, limiting connections to trusted SMB servers only.
  3. Disable SMB client functionality on systems where it is not required to reduce the attack surface.
  4. Implement network segmentation to isolate legacy systems running Windows 10 Version 1507 from critical infrastructure and sensitive data stores.
  5. Monitor network traffic for unusual SMB connection attempts or tampering indicators using intrusion detection systems (IDS) or endpoint detection and response (EDR) tools.
  6. Educate users to avoid connecting to untrusted SMB shares or servers, as exploitation requires user interaction.
  7. Stay alert for official patches or security advisories from Microsoft and apply them promptly once available.
  8. Consider deploying SMB signing and encryption where possible to enhance SMB communication security and reduce tampering risks.

Description

Improper authentication in Windows SMB Client allows an unauthorized attacker to perform tampering over a network.

References

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