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Public proof of conceptFix available

CVE-2019-14287

A public proof of concept exists; no exploitation attested.

  • Published2019-10-17
  • WeaknessCWE-755

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

In Sudo before 1.8.28, an attacker with access to a Runas ALL sudoer account can bypass certain policy blacklists and session PAM modules, and can cause incorrect logging, by invoking sudo with a crafted user ID. For example, this allows bypass of !root configuration, and USER= logging, for a "sudo -u \#$((0xffffffff))" command.

Timeline

dates in UTC
  1. 2019-10-15Exploit-DB entryExploit-DB
  2. 2019-10-1718:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 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-2019-14287?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-14287?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Redhat enterprise linux server aus
BranchAffectedFixed in
6.5= 6.5no fix published
6.6= 6.6no fix published
7.2= 7.2no fix published
7.3= 7.3no fix published
7.4= 7.4no fix published
7.6= 7.6no fix published
7.7= 7.7no fix published
8.2= 8.2no fix published
8.4= 8.4no fix published
Redhat enterprise linux server tus
BranchAffectedFixed in
7.2= 7.2no fix published
7.3= 7.3no fix published
7.4= 7.4no fix published
7.6= 7.6no fix published
7.7= 7.7no fix published
8.2= 8.2no fix published
8.4= 8.4no fix published
Redhat enterprise linux eus
BranchAffectedFixed in
7.5= 7.5no fix published
7.6= 7.6no fix published
7.7= 7.7no fix published
8.1= 8.1no fix published
8.2= 8.2no fix published
8.4= 8.4no fix published

12 more products in the sources.

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

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • redhat-release-virtualization-hostRed Hat:enterprise_linux:7::hypervisorall versions · fixed in 0:4.2-15.1.el7and 2 other packages
  • redhat-virtualization-hostRed Hat:enterprise_linux:7::hypervisorall versions · fixed in 0:4.2-20191022.0.el7_6and 1 other package
  • sudoUbuntu:Pro:14.04:LTSall versions · fixed in 1.8.9p5-1ubuntu1.5+esm2
  • sudoUbuntu:18.04:LTSall versions · fixed in 1.8.21p2-3ubuntu1.1
  • sudoUbuntu:16.04:LTSall versions · fixed in 1.8.16-0ubuntu1.8
  • sudoSUSE:OpenStack Cloud Crowbar 8all versions · fixed in 1.8.20p2-3.14.1
  • sudoSUSE:OpenStack Cloud 8all versions · fixed in 1.8.20p2-3.14.1
  • sudoSUSE:OpenStack Cloud 7all versions · fixed in 1.8.10p3-10.23.1

73 more package ranges on OSV.dev

Vendor advisories

  • CVE-2019-14287 Red Hat Product Security284 products fixed

    sudo: Privilege escalation via 'Runas' specification with 'ALL' keyword

  • RHSA-2020:0388 Red Hat Product Security7 products fixed

    Red Hat Security Advisory: sudo security update

  • RHSA-2019:4191 Red Hat Product Security7 products fixed

    Red Hat Security Advisory: sudo security update

  • RHSA-2019:3941 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.1.24 machine-os-content-container security update

  • RHSA-2019:3916 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.2.5 machine-os-content-container security update

  • RHSA-2019:3895 Red Hat Product Security8 products fixed

    Red Hat Security Advisory: sudo security update

10 more advisories

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2020:0388 · 7 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  2. Vendor fix Red Hat Product Security RHSA-2019:3941 · 1 productFor OpenShift Container Platform 4.1 see the following documentation, which will be updated shortly for release 4.1.24, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.1/release_notes/ocp-4-1…
  3. Vendor fix Red Hat Product Security RHSA-2019:3916 · 1 productSee the following documentation, which will be updated shortly for release 4.2.5, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.2/release_notes/ocp-4-2-release-notes.html
  4. Vendor fix Red Hat Product Security RHBA-2019:3248 · 9 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/2974891
  5. Workaround from the vendor Red Hat Product Security RHSA-2020:0388 · 7 productsThis vulnerability only affects configurations of sudo that have a runas user list that includes an exclusion of root. The most simple example is: ~~~ someuser ALL=(ALL, !root) /usr/bin/somecommand ~~~ The exclusion is specified using an excalamation mark (!). In this example, the "root" user i…

Advisories and patches

Detection

read 2026-11-03 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-47502
Exploit-DB
Proof-of-concept repositories
20 repositories, unverifiedFauxFaux/sudo-cve-2019-14287CashWilliams/CVE-2019-14287-demon0w4n/CVE-2019-14287gurneesh/CVE-2019-14287-write-upshallvhack/Sudo-Security-Bypass-CVE-2019-14287
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.18.8read 2026-10-23
  • NVDCVSS 2.09read 2026-10-23
  • NVDweakness (CWE)CWE-755read 2026-10-23
  • FIRST EPSSEPSS score63.8 %read 2026-11-03
  • PoC-in-GitHubproof of concept20read 2026-11-03
  • Exploit-DBdetectionread 2026-11-03
  • OSVaffected packages—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2019-10-17
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2019-14287?

In Sudo before 1.8.28, an attacker with access to a Runas ALL sudoer account can bypass certain policy blacklists and session PAM modules, and can cause incorrect logging, by invoking sudo with a crafted user ID. For example, this allows bypass of !root configuration, and USER= logging, for a "sudo -u \#$((0xffffffff))" command.

Is CVE-2019-14287 actively exploited?

Active exploitation of CVE-2019-14287 has not been confirmed. Its EPSS score was 63.8% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-14287?

CVE-2019-14287 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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