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Public proof of conceptFix available

CVE-2017-7308

A public proof of concept exists; no exploitation attested.

  • Published2017-03-29
  • Fixed in4.10.14 · 4.9.26 · 4.4.66 · 4.1.41 · 3.18.52 · 3.16.44
  • WeaknessCWE-681 · CWE-787

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 packet_set_ring function in net/packet/af_packet.c in the Linux kernel through 4.10.6 does not properly validate certain block-size data, which allows local users to cause a denial of service (integer signedness error and out-of-bounds write), or gain privileges (if the CAP_NET_RAW capability is held), via crafted system calls.

Timeline

dates in UTC
  1. 2017-03-2920:59CVE publishedNVD
  2. 2026-10-2319:23First public proof of conceptPoC-in-GitHub
  3. 2026-10-2319:23EPSS crossed 10 %FIRST EPSS

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-2017-7308?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-7308?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
4.10≥ 4.10, < 4.10.144.10.14
4.x≥ 4.5, < 4.9.264.9.26
4.x≥ 4.2, < 4.4.664.4.66
4.1≥ 3.19, < 4.1.414.1.41
3.x≥ 3.17, < 3.18.523.18.52
3.x≥ 3.13, < 3.16.443.16.44
3.x≥ 3.11, < 3.12.743.12.74
3.x≥ 3.3, < 3.10.1073.10.107
3.2≥ 2.6.27, < 3.2.893.2.89

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 4.10.14 · 4.9.26 · 4.4.66 · 4.1.41 · 3.18.52 · 3.16.44 · 3.12.74 · 3.10.107

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, unverifiedanldori/CVE-2017-7308WhatsWrongAndWhy/CVE-2017-7308
PoC-in-GitHub

Sources

  • NVDCVSS 3.17.8read 2026-10-23
  • NVDCVSS 2.07.2read 2026-10-23
  • NVDweakness (CWE)CWE-681, CWE-787read 2026-10-23
  • FIRST EPSSEPSS score17.8 %read 2026-10-23
  • 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
2017-03-29
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2017-7308?

The packet_set_ring function in net/packet/af_packet.c in the Linux kernel through 4.10.6 does not properly validate certain block-size data, which allows local users to cause a denial of service (integer signedness error and out-of-bounds write), or gain privileges (if the CAP_NET_RAW capability is held), via crafted system calls.

Is CVE-2017-7308 actively exploited?

Active exploitation of CVE-2017-7308 has not been confirmed. Its EPSS score was 17.8% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-7308?

CVE-2017-7308 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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