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CVE-2019-3846

30
FAUCET Score

CVE-2019-3846 describes a memory corruption vulnerability in the mwifiex kernel module, affecting various Linux distributions including Canonical, Debian, Fedora, openSUSE, and Red Hat. This high-severity flaw (CVSS 8.8) allows an unauthenticated attacker on an adjacent network to achieve memory corruption and potentially escalate privileges by connecting to a malicious wireless network. Despite its high severity, there is currently no known public exploit code (Metasploit, Nuclei, ExploitDB) and minimal community discussion or media coverage, indicating it is not actively exploited in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.0, < 3.16.70CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.17, < 4.4.186CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.5, < 4.9.186CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.134CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.59CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.0HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.1
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
5.65%
Probability of exploitation in next 30 days
EPSS Percentile
92.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0565 is in the 95th percentile among its peer group of 1,859 CVEs.

Social Chatter

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

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (9)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-1062.4.1.rt56.1027.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-1062.4.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kpatch-patch
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt-0:4.14.0-115.17.1.el7a
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.6 Extended Update SupportFixed in: kernel-0:3.10.0-957.54.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-80.11.1.rt9.156.el8_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-80.11.1.el8_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 EUSFixed in: kernel-0:3.10.0-957.54.1.el7
View patch

Vendor Advisories (1)

redhatCVE-2019-3846Important

kernel: Heap overflow in mwifiex_update_bss_desc_with_ie function in marvell/mwifiex/scan.c

May 30, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-06/msg00039.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2019-06/msg00040.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2019-06/msg00048.html
Mailing ListThird Party Advisory
packetstormsecurity.com / files/153702/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
Third Party AdvisoryVDB Entry
packetstormsecurity.com / files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html
Third Party AdvisoryVDB Entry
packetstormsecurity.com / files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
Third Party AdvisoryVDB Entry
access.redhat.com / errata/RHSA-2019:2703
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2741
Third Party Advisory
access.redhat.com / errata/RHSA-2019:3055
Third Party Advisory
access.redhat.com / errata/RHSA-2019:3076
Third Party Advisory
access.redhat.com / errata/RHSA-2019:3089
Third Party Advisory
access.redhat.com / errata/RHSA-2020:0174
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingMitigationPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2019/06/msg00010.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2019/06/msg00011.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/J36BIJTKEPUOZKJNHQBUZA47RQONUKOI
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/KLGWJKLMTBBB53D5QLS4HOY2EH246WBE
seclists.org / bugtraq/2019/Jul/33
Mailing ListPatchThird Party Advisory
seclists.org / bugtraq/2019/Jun/26
Mailing ListThird Party Advisory
seclists.org / oss-sec/2019/q2/133
ExploitMailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20190710-0002
Third Party Advisory
usn.ubuntu.com / 4093-1
Third Party Advisory
usn.ubuntu.com / 4094-1
Third Party Advisory
usn.ubuntu.com / 4095-1
Third Party Advisory
usn.ubuntu.com / 4095-2
Third Party Advisory
usn.ubuntu.com / 4117-1
Third Party Advisory
usn.ubuntu.com / 4118-1
Third Party Advisory
debian.org / security/2019/dsa-4465
Third Party Advisory