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Public proof of conceptFix available

CVE-2017-6074

A public proof of concept exists; no exploitation attested.

  • Published2017-02-18
  • Fixed in4.9.13 · 4.4.52 · 4.1.41 · 3.18.49 · 3.16.41 · 3.12.71
  • WeaknessCWE-415

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The dccp_rcv_state_process function in net/dccp/input.c in the Linux kernel through 4.9.11 mishandles DCCP_PKT_REQUEST packet data structures in the LISTEN state, which allows local users to obtain root privileges or cause a denial of service (double free) via an application that makes an IPV6_RECVPKTINFO setsockopt system call.

Timeline

dates in UTC
  1. 2017-02-1821:59CVE publishedNVD
  2. 2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-6074?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-6074?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Linux linux kernel
BranchAffectedFixed in
4.x≥ 4.5, < 4.9.134.9.13
4.x≥ 4.2, < 4.4.524.4.52
4.1≥ 3.19, < 4.1.414.1.41
3.x≥ 3.17, < 3.18.493.18.49
3.x≥ 3.13, < 3.16.413.16.41
3.x≥ 3.11, < 3.12.713.12.71
3.x≥ 3.3, < 3.10.1063.10.106
3.2< 3.2.863.2.86
Debian debian linux
BranchAffectedFixed in
8.0= 8.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Linux linux kernel to 4.9.13 · 4.4.52 · 4.1.41 · 3.18.49 · 3.16.41 · 3.12.71 · 3.10.106 · 3.2.86

Advisories and patches

Detection

read 2026-10-23 19:23 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
2 repositories, unverifiedBimsaraMalinda/Linux-Kernel-4.4.0-Ubuntu---DCCP-Double-Free-Privilege-Escalation-CVE-2017-607434zY/CVE-2017-6074-DOS
PoC-in-GitHub

Sources

  • NVDCVSS 3.17.8read 2026-10-23
  • NVDCVSS 2.07.2read 2026-10-23
  • NVDweakness (CWE)CWE-415read 2026-10-23
  • FIRST EPSSEPSS score6.0 %2026-10-22
  • PoC-in-GitHubproof of concept2read 2026-10-23

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2017-02-18
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2017-6074?

The dccp_rcv_state_process function in net/dccp/input.c in the Linux kernel through 4.9.11 mishandles DCCP_PKT_REQUEST packet data structures in the LISTEN state, which allows local users to obtain root privileges or cause a denial of service (double free) via an application that makes an IPV6_RECVPKTINFO setsockopt system call.

Is CVE-2017-6074 actively exploited?

Active exploitation of CVE-2017-6074 has not been confirmed. Its EPSS score was 6.0% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-6074?

CVE-2017-6074 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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