CVE-2019-18282

5.3 MEDIUM 3% exploit odds Fix listed

What it is

The flow_dissector feature in the Linux kernel 4.3 through 5.x before 5.3.10 has a device tracking vulnerability, aka CID-55667441c84f. This occurs because the auto flowlabel of a UDP IPv6 packet relies on a 32-bit hashrnd value as a secret, and because jhash (instead of siphash) is used. The hashrnd value remains the same starting from boot time, and can be inferred by an attacker. This affects net/core/flow_dissector.c and related code.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 2.9% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2020-01-16 16:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 02:24 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 2.9% in the next 30 days (EPSS).
Severity: 5.3 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2020-01-16 16:15 UTC
Last modified: 2026-06-17 02:24 UTC
Exploit probability: 2.9% · EPSS, next 30 days
Weakness: CWE-330
Record status: Modified

Affected

Linux Kernel ≤ 5.3.10
Debian Linux 8.0
Netapp a700s Firmware
Netapp 8300 Firmware
Netapp 8700 Firmware
Netapp a400 Firmware
Netapp h610s Firmware
Netapp Active Iq Unified Manager

Attack profile CVSS 3.1 · 5.3

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2019-18282.md and follow it. Check whether this project is affected by CVE-2019-18282. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record