CVE-2016-7076 — sudo: noexec bypass via wordexp()

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HIGH

sudo: noexec bypass via wordexp()

Published May 29, 2018

7.8

HIGH

CVSS 3.0

EPSS 0.49%

Description

sudo before version 1.8.18p1 is vulnerable to a bypass in the sudo noexec restriction if application run via sudo executed wordexp() C library function with a user supplied argument. A local user permitted to run such application via sudo with noexec restriction could possibly use this flaw to execute arbitrary commands with elevated privileges.

Affected products

Vendor n/a Product Sudo Default
n/a
- Version
  sudo 1.8.18p1
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

n/a

Sudo

n/a

Version	Status	Constraints
sudo 1.8.18p1	affected	-

Red Hat Enterprise Linux 6

sudo-0:1.8.6p3-25.el6_8

Fixed · RHSA-2016:2872
Red Hat Enterprise Linux 7

sudo-0:1.8.6p7-21.el7_3

Fixed · RHSA-2016:2872
Red Hat Enterprise Linux 5

sudo

Will not fix

Product	Package	State	Advisory
Red Hat Enterprise Linux 6	sudo-0:1.8.6p3-25.el6_8	Fixed	RHSA-2016:2872
Red Hat Enterprise Linux 7	sudo-0:1.8.6p7-21.el7_3	Fixed	RHSA-2016:2872
Red Hat Enterprise Linux 5	sudo	Will not fix	n/a

Remediation

No remediation recorded yet.

Metrics

0.49% 0.00493

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00493

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (8 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.49% (0.00493)	40.09th	v5 (v2026.06.15)
Jun 15, 2026	0.50% (0.00497)	38.48th	v5 (v2026.06.15)
Mar 17, 2025	0.07% (0.00072)	19.31th	v4 (v2025.03.14)
Dec 12, 2024	0.04% (0.00042)	5.07th	v3 (v2023.03.01)
Mar 7, 2023	0.04% (0.00042)	5.63th	v3 (v2023.03.01)
Mar 6, 2023	2.72% (0.02719)	82.86th	v2 (v2022.01.01)
Apr 1, 2022	2.72% (0.02719)	81.18th	v2 (v2022.01.01)
Feb 4, 2022	2.72% (0.02719)	62.68th	v2 (v2022.01.01)

Weaknesses (2)

CWE-184

CWE-77

References (11)

http://rhn.redhat.com/errata/RHSA-2016-2872.html
vendor-advisoryx_refsource_REDHATThird Party Advisory
http://www.securityfocus.com/bid/95778
vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
https://access.redhat.com/security/cve/CVE-2016-7076
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1384982
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7076
x_refsource_CONFIRMIssue Tracking
https://nvd.nist.gov/vuln/detail/CVE-2016-7076
https://security.netapp.com/advisory/ntap-20181127-0002/
x_refsource_CONFIRM
https://usn.ubuntu.com/3968-1/
vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3968-3/
vendor-advisoryx_refsource_UBUNTU
https://www.cve.org/CVERecord?id=CVE-2016-7076
https://www.sudo.ws/alerts/noexec_wordexp.html
x_refsource_CONFIRMThird Party Advisory

Link	Providers	Tags
http://rhn.redhat.com/errata/RHSA-2016-2872.html		vendor-advisoryx_refsource_REDHATThird Party Advisory
http://www.securityfocus.com/bid/95778		vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
https://access.redhat.com/security/cve/CVE-2016-7076		Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1384982		Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7076		x_refsource_CONFIRMIssue Tracking
https://nvd.nist.gov/vuln/detail/CVE-2016-7076
https://security.netapp.com/advisory/ntap-20181127-0002/		x_refsource_CONFIRM
https://usn.ubuntu.com/3968-1/		vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3968-3/		vendor-advisoryx_refsource_UBUNTU
https://www.cve.org/CVERecord?id=CVE-2016-7076
https://www.sudo.ws/alerts/noexec_wordexp.html		x_refsource_CONFIRMThird Party Advisory