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CVE-2015-7891

26
FAUCET Score

CVE-2015-7891 is a race condition vulnerability in the Samsung Graphics 2D driver (/dev/fimg2d) affecting Samsung Android L (5.0/5.1) devices. This flaw, due to g2d_lock and g2d_unlock macros being no-ops, allows a local attacker to trigger memory errors. With a CVSS score of 7.0 (HIGH), it has a high impact on confidentiality, integrity, and availability, but requires high attack complexity. While not actively exploited in the wild (no KEV entry), public exploit code (EDB-38557) is available, and it has received some media coverage and community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
5.0CPE matchmatch criteria
cpe:2.3:o:samsung:samsung_mobile:5.0:*:*:*:*:*:*:*
5.1CPE matchmatch criteria
cpe:2.3:o:samsung:samsung_mobile:5.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.0HIGH

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.67%
Probability of exploitation in next 30 days
EPSS Percentile
48.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-38557 · Oct 28, 2015
This CVE's current EPSS score of 0.0067 is in the 85th percentile among its peer group of 1,523 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/134107/Samsung-Fimg2d-FIMG2D_BITBLT_BLIT-Ioctl-Concurrency-Flaw.html
ExploitThird Party AdvisoryVDB Entry
bugs.chromium.org / p/project-zero/issues/detail
Issue TrackingThird Party Advisory
security.samsungmobile.com / smrupdate.html
Vendor Advisory
exploit-db.com / exploits/38557
ExploitThird Party AdvisoryVDB Entry
securityfocus.com / bid/77335
Third Party AdvisoryVDB Entry