CVE-2025-44964

Information exposure via absent certificate validation

Published Aug 5, 2025 · Updated Jul 5, 2026

Improper certificate validation in BlueStacks Player 5.20 allows man-in-the-middle attackers to obtain sensitive information. During SSL session establishment, the client continues without validating the presented server certificate; the affected routine is undisclosed. Exploitation requires high privileges and an adjacent network position, with consequences limited to application-traffic exposure, alteration, or interruption.

CVSS severity3.9
Low
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in BlueStacks Player 5.20 allows man-in-the-middle attackers to obtain sensitive information. During SSL session establishment, the client continues without validating the presented server certificate; the affected routine is undisclosed. Exploitation requires high privileges and an adjacent network position, with consequences limited to application-traffic exposure, alteration, or interruption.

The record

CVE
CVE-2025-44964
Published
Aug 5, 2025
Updated
Jul 5, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-295, T1557
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Aug 5, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.9CISA-ADPCVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-295Improper Certificate Validation
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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