MEDIUM
CVE-2019-19063
CWE-401Published: November 18, 2019· Updated: Jun 17, 2026
4.6
CVSS v3.1
Official Description
Two memory leaks in the rtl_usb_probe() function in drivers/net/wireless/realtek/rtlwifi/usb.c in the Linux kernel through 5.3.11 allow attackers to cause a denial of service (memory consumption), aka CID-3f9361695113.
Technical Analysis
CVE-2019-19063 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
broadcom1 product(s)
brocade fabric operating system firmware
Canonical1 product(s)
ubuntu linux
Fedora1 product(s)
fedora
Linux1 product(s)
linux kernel
netapp14 product(s)
active iq unified manageraff baseboard management controllercloud backupdata availability servicese-series santricity os controllerfas\/aff baseboard management controllerhci baseboard management controllersolidfire\, enterprise sds \& hci storage nodesolidfire \& hci management nodesteelstore cloud integrated storagehci compute node firmwarehci compute node+2
openSUSE1 product(s)
leap
Oracle1 product(s)
sd-wan edge
Source: NVD CPE · 40 total CPE entries
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/4254-1/
ADVISORYhttps://usn.ubuntu.com/4254-2/
ADVISORYhttps://usn.ubuntu.com/4284-1/
ADVISORYhttps://usn.ubuntu.com/4285-1/
ADVISORYhttps://usn.ubuntu.com/4287-1/
ADVISORYhttps://usn.ubuntu.com/4287-2/
ADVISORYhttps://usn.ubuntu.com/4254-1/
ADVISORYhttps://usn.ubuntu.com/4254-2/
ADVISORYhttps://usn.ubuntu.com/4284-1/
ADVISORYhttps://usn.ubuntu.com/4285-1/
ADVISORYhttps://usn.ubuntu.com/4287-1/
ADVISORYhttps://usn.ubuntu.com/4287-2/
All References (28)
→
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.htmlThird Party Advisory
→
http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.htmlThird Party Advisory · VDB Entry
→
https://github.com/torvalds/linux/commit/3f93616951138a598d930dcaec40f2bfd9ce43bbPatch · Third Party Advisory
→
https://seclists.org/bugtraq/2020/Jan/10Mailing List · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20191205-0001/Third Party Advisory
→
https://usn.ubuntu.com/4254-1/Third Party Advisory
→
https://usn.ubuntu.com/4254-2/Third Party Advisory
→
https://usn.ubuntu.com/4284-1/Third Party Advisory
→
https://usn.ubuntu.com/4285-1/Third Party Advisory
→
https://usn.ubuntu.com/4287-1/Third Party Advisory
→
https://usn.ubuntu.com/4287-2/Third Party Advisory
→
https://www.oracle.com/security-alerts/cpuApr2021.htmlPatch · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.htmlThird Party Advisory
Quick Facts
CVE IDCVE-2019-19063
CVSS Score4.6 / 10
SeverityMEDIUM
WeaknessCWE-401
CISA KEVNo
Affected7 vendor(s)
PublishedNov 18, 2019
Related CVEs (CWE-401)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-19063 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.