CVE-2017-16995

highpriority · attend · 52EPSS 0.301 · 98 %ileexploit · weaponizedEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

19 exploits · weaponized

Likely / severe?

30.1% (98th) EPSS

CVSS 7.2 · high

Is it mine?

6 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

The check_alu_op function in kernel/bpf/verifier.c in the Linux kernel through 4.4 allows local users to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging incorrect sign extension.

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 10

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.6highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Fsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119USprimary

exploits (19)

Public proof-of-concept and weaponised exploit code.

exploit/linux/local/bpf_sign_extension_priv_escLinux BPF Sign Extension Local Privilege Escalationweaponized · metasploit
EDB-45010Linux Kernel < 4.13.9 (Ubuntu 16.04 / Fedora 27) - Local Privilege Escalationfunctional · exploit_db
EDB-45058Linux - BPF Sign Extension Local Privilege Escalation (Metasploit)functional · exploit_db
EDB-44298Linux Kernel < 4.4.0-116 (Ubuntu 16.04.4) - Local Privilege EscalationPoC · exploit_db
Al1ex/CVE-2017-16995CVE-2017-16995（Ubuntu本地提权漏洞）PoC · poc_in_github
C0dak/CVE-2017-16995Linux Kernel Version 4.14 - 4.4 (Ubuntu && Debian)PoC · poc_in_github

affected products (6)

Products and version ranges known to be affected.

n/a n/a≤ through 4.4enisa_euvdEU
canonical ubuntu linux= 14.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 16.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
debian debian linux= 9.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
linux linux kernel4.10 → 4.14.9nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux kernel4.9 → 4.9.72nvdUScpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2017-12-27modified 2026-06-17

related (21,028)

Related entries.

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+21023 more

references (43)

External citations — patches, advisories, analysis.

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