CVE-2018-0492

Exp

Johnathan Nightingale beep through 1.3.4, if setuid, has a race condition that allows local privilege escalation.

Published: 2018-04-03 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-0492 is rated High Exploit Risk (72.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.09%). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2018-0492

EDB-ID Source Kind Published Link
44452 exploit_db edb 2018-04-06 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-0492

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-13 2.21% 2.09% -0.12%
2 2026-01-30 1.73% 2.21% +0.49%
3 2025-03-30 — 1.73% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-0492

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.0 3.0 HIGH
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.0 5.9 [email protected]
4.4 2.0 MEDIUM
AV:L/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.4 6.4 [email protected]

Weakness enumeration for CVE-2018-0492

OS Trackers for CVE-2018-0492

vendor priority summary link
debian not yet assigned CVE-2018-0492 not yet assigned priority: Debian including 1 source packages (beep), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-0492
gentoo normal CVE-2018-0492: 1 GLSA(s) (201805-15), 1 atom(s) (app-misc/beep); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2018-0492
ubuntu medium CVE-2018-0492 medium priority: Ubuntu including 1 source packages (beep), 4 status rows across 4 suites (artful, trusty, upstream, xenial): released 3, needs-triage 1. https://ubuntu.com/security/CVE-2018-0492

Affected software / configurations for CVE-2018-0492

Vendor Product Version Raw CPE
beep_project beep <= 1.3.4 cpe:2.3:a:beep_project:beep:*:*:*:*:*:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

References for CVE-2018-0492

cvelogic Threat Intelligence