CVE-2018-0493

remctld in remctl before 3.14, when an attacker is authorized to execute a command that uses the...

7.2 HighFix available

remctld in remctl before 3.14, when an attacker is authorized to execute a command that uses the sudo option, has a use-after-free that leads to a daemon crash, memory corruption, or arbitrary command execution.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

2.46%Up 1.3 points since Apr 14, 2021

What each source reports

NVD Score used 7.2

Record: CVE-2018-0493
CVSS 3.0: 7.2 HighCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 6.5 MediumAV:N/AC:L/Au:S/C:P/I:P/A:P
Weakness: CWE-416
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-0493
Updated: 2026-11-02

EUVDEUVD-2018-1316 No score

Record: EUVD-2018-1316
Updated: 2026-11-03

GitHub AdvisoriesGHSA-5h2w-vxv5-92f3 7.2

remctld in remctl before 3.14, when an attacker is authorized to execute a command that uses the...

Record: GHSA-5h2w-vxv5-92f3
CVSS 3.0: 7.2 HighCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-416
Updated: 2026-11-02

OSV 7.2

Record: CVE-2018-0493
CVSS 3.0: 7.2 HighCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2018-0493 7.2

Record: DEBIAN-CVE-2018-0493
CVSS 3.0: 7.2 HighCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2018-0493 7.2

Record: UBUNTU-CVE-2018-0493
CVSS 3.0: 7.2 HighCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`remctl` Debian:12	before 3.14-1	3.14-1
`remctl` Debian:13	before 3.14-1	3.14-1
`remctl` Debian:14	before 3.14-1	3.14-1
`remctl` Debian:9	before 3.13-1+deb9u1, plus listed versions 3.13-1	3.13-1+deb9u1
`remctl` Ubuntu:16.04:LTS	All versions, plus listed versions 3.9-2build13.10-13.10-1build13.10-1ubuntu1	None known
`remctl` Ubuntu:18.04:LTS	before 3.13-1+deb9u1, plus listed versions 3.13-1build33.13-1build43.13-1build5	3.13-1+deb9u1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-0493 is a high vulnerability (CVSS 7.2) in Eyrie Remctl, published April 1, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.46%, the 84th percentile. Fixed in remctl 3.14-1.