CVE-2019-1991

In btif_dm_data_copy of btif_core.cc, there is a possible out of bounds write due to a buffer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android. Versions: Android-7.0 Android-7.1.1 Android-7.1.2 Android-8.0 Android-8.1 Android-9. Android ID: A-110166268.

Published: 2019-02-28 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-1991 is rated Moderate Risk (63.7/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.03%). EPSS rose +1.02% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2019-1991

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.00% 2.03% +1.02%
2 2025-03-30 1.50% 1.00% -0.49%
3 2025-03-29 — 1.50% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-1991

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2019-1991

Affected software / configurations for CVE-2019-1991

Vendor Product Version Raw CPE
google android 7.0 cpe:2.3:o:google:android:7.0:*:*:*:*:*:*:*
google android 7.1.1 cpe:2.3:o:google:android:7.1.1:*:*:*:*:*:*:*
google android 7.1.2 cpe:2.3:o:google:android:7.1.2:*:*:*:*:*:*:*
google android 8.0 cpe:2.3:o:google:android:8.0:*:*:*:*:*:*:*
google android 8.1 cpe:2.3:o:google:android:8.1:*:*:*:*:*:*:*
google android 9.0 cpe:2.3:o:google:android:9.0:*:*:*:*:*:*:*

References for CVE-2019-1991

cvelogic Threat Intelligence