MEDIUM
CVE-2019-15223
CWE-476Published: August 19, 2019· Updated: Jun 17, 2026
4.6
CVSS v3.1
Official Description
An issue was discovered in the Linux kernel before 5.1.8. There is a NULL pointer dereference caused by a malicious USB device in the sound/usb/line6/driver.c driver.
Technical Analysis
CVE-2019-15223 requires local access, meaning attackers must already have a foothold on the target system.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 4.6.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorPhysical
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
ADVISORYhttps://usn.ubuntu.com/4147-1/
ADVISORYhttps://usn.ubuntu.com/4147-1/
All References (12)
→
http://www.openwall.com/lists/oss-security/2019/08/20/2Mailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20190905-0002/Third Party Advisory
→
https://syzkaller.appspot.com/bug?id=0c1e517c657d3de2361cb0cc2d3a8663c25039a7Exploit · Third Party Advisory
→
https://usn.ubuntu.com/4147-1/Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2019/08/20/2Mailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20190905-0002/Third Party Advisory
→
https://syzkaller.appspot.com/bug?id=0c1e517c657d3de2361cb0cc2d3a8663c25039a7Exploit · Third Party Advisory
→
https://usn.ubuntu.com/4147-1/Third Party Advisory
Quick Facts
CVE IDCVE-2019-15223
CVSS Score4.6 / 10
SeverityMEDIUM
WeaknessCWE-476
CISA KEVNo
Affected3 vendor(s)
PublishedAug 19, 2019
Related CVEs (CWE-476)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-15223 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.