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Public proof of conceptFix available

CVE-2017-7184

A public proof of concept exists; no exploitation attested.

  • Published2017-03-19
  • Fixed in4.10.8 · 4.9.20 · 4.4.59 · 4.1.49 · 3.18.49 · 3.16.44

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 xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel through 4.10.6 does not validate certain size data after an XFRM_MSG_NEWAE update, which allows local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) by leveraging the CAP_NET_ADMIN capability, as demonstrated during a Pwn2Own competition at CanSecWest 2017 for the Ubuntu 16.10 linux-image-* package 4.8.0.41.52.

Timeline

dates in UTC
  1. 2017-03-1918:59CVE 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-2017-7184?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-7184?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 kernelversion to verify
BranchAffectedFixed in
4.10≥ 4.10, < 4.10.84.10.8
4.x≥ 4.5, < 4.9.204.9.20
4.x≥ 4.2, < 4.4.594.4.59
4.1≥ 3.19, < 4.1.494.1.49
3.x≥ 3.17, < 3.18.493.18.49
3.x≥ 3.13, < 3.16.443.16.44
3.x≥ 3.11, < 3.12.733.12.73
3.x≥ 3.3, < 3.10.1063.10.106
3.2< 3.2.893.2.89
4.8= 4.8no 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 4.10.8 · 4.9.20 · 4.4.59 · 4.1.49 · 3.18.49 · 3.16.44 · 3.12.73 · 3.10.106

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
3 repositories, unverifiedb1nhack/CVE-2017-7184Grish-Pradhan/CVE-2017-7184shakyanayann/CVE-2017-7184
PoC-in-GitHub

Sources

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
2017-03-19
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2017-7184?

The xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel through 4.10.6 does not validate certain size data after an XFRM_MSG_NEWAE update, which allows local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) by leveraging the CAP_NET_ADMIN capability, as demonstrated during a Pwn2Own competition at CanSecWest 2017 for the Ubuntu 16.10 linux-image-* package 4.8.0.41.52.

Is CVE-2017-7184 actively exploited?

Active exploitation of CVE-2017-7184 has not been confirmed. Its EPSS score was 1.8% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-7184?

CVE-2017-7184 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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