No exploitation reportedFix available

CVE-2019-12936

Q: Is CVE-2019-12936 actively exploited?

Active exploitation of CVE-2019-12936 has not been confirmed. Its EPSS score was 3.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2019-12936?

CVE-2019-12936 has a CVSS v3 base score of 8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2019-06-23
Fixed in4.90
WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

BlueStacks App Player 2, 3, and 4 before 4.90 allows DNS Rebinding for attacks on exposed IPC functions.

Timeline

dates in UTC

2019-06-2323:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-12936?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-12936?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Bluestacks bluestacks app player

Branch	Affected	Fixed in	Source
4.90	< 4.90	4.90	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Bluestacks bluestacks app player to 4.90

Advisories and patches

support.bluestacks.comRelease Notes · Vendor Advisory
support.bluestacks.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CNACVSS 3.07.1read 2026-10-23
NVDCVSS 3.08read 2026-10-23
NVDCVSS 2.06read 2026-10-23
NVDweakness (CWE)CWE-20read 2026-10-23
FIRST EPSSEPSS score3.4 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Published: 2019-06-23
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-12936?

BlueStacks App Player 2, 3, and 4 before 4.90 allows DNS Rebinding for attacks on exposed IPC functions.

Is CVE-2019-12936 actively exploited?

Active exploitation of CVE-2019-12936 has not been confirmed. Its EPSS score was 3.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-12936?

CVE-2019-12936 has a CVSS v3 base score of 8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

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