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CVE-2019-18282

20
FAUCET Score

CVE-2019-18282 is a device tracking vulnerability in the Linux kernel (versions 4.3 through 5.x before 5.3.10) affecting Debian, Linux, and NetApp products. It stems from the use of a predictable 32-bit hashrnd value and jhash for UDP IPv6 packet auto flowlabeling, allowing an attacker to infer this secret. Rated Medium (CVSS 5.3), this vulnerability has a low impact on confidentiality and requires no user interaction or privileges, but its network attack vector makes it broadly accessible. There is no evidence of active exploitation, public exploit code, or significant community discussion, suggesting a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.3, <= 5.3.10CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:netapp:a700s_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:netapp:8300_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:netapp:8700_firmware:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.60%
Probability of exploitation in next 30 days
EPSS Percentile
83.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0261 is in the 76th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-1160.11.1.rt56.1145.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-1160.11.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-193.rt13.51.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-193.el8
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt

Vendor Advisories (1)

redhatCVE-2019-18282Moderate

kernel: The flow_dissector feature allows device tracking

Oct 22, 2019

References

cdn.kernel.org / pub/linux/kernel/v5.x/ChangeLog-5.3.10
Mailing ListVendor Advisory
git.kernel.org / pub/scm/linux/kernel/git/stable/linux.git/commit
Mailing ListPatchVendor Advisory
lists.debian.org / debian-lts-announce/2020/03/msg00001.html
Mailing ListThird Party Advisory
security.netapp.com / advisory/ntap-20200204-0002
Third Party Advisory
computer.org / csdl/proceedings-article/sp/2020/349700b594/1j2LgrHDR2o
Third Party Advisory