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CVE-2019-15291

18
FAUCET Score

CVE-2019-15291 is a NULL pointer dereference vulnerability in the Linux kernel, specifically within the flexcop-usb.c driver, affecting versions up to 5.2.9. This flaw can be triggered by a malicious USB device, leading to a denial of service. With a CVSS score of 4.6 (Medium), it requires physical access (AV:P) to the system and results in high availability impact (A:H). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog, though it has received limited community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.2.9CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.6MEDIUM

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

Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
0.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.67%
Probability of exploitation in next 30 days
EPSS Percentile
48.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0067 is in the 86th percentile among its peer group of 1,532 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (5)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2019-15291Low

kernel: Null pointer dereference in the flexcop_usb_probe function in the drivers/media/usb/b2c2/flexcop-usb.c

Aug 2, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-10/msg00036.html
lists.opensuse.org / opensuse-security-announce/2019-10/msg00037.html
packetstormsecurity.com / files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
lists.debian.org / debian-lts-announce/2020/01/msg00013.html
lists.debian.org / debian-lts-announce/2020/03/msg00001.html
seclists.org / bugtraq/2020/Jan/10
security.netapp.com / advisory/ntap-20190905-0002
syzkaller.appspot.com / bug
ExploitThird Party Advisory
usn.ubuntu.com / 4254-1
usn.ubuntu.com / 4254-2
usn.ubuntu.com / 4258-1
usn.ubuntu.com / 4284-1
usn.ubuntu.com / 4287-1
usn.ubuntu.com / 4287-2
openwall.com / lists/oss-security/2019/08/20/2
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2019/08/22/1
Mailing ListThird Party Advisory