CVE-2018-19046

keepalived 2.0.8 didn't check for existing plain files when writing data to a temporary file upon a call to PrintData or PrintStats. If a local attacker had previously created a file with the expected name (e.g., /tmp/keepalived.data or /tmp/keepalived.stats), with read access for the attacker and write access for the keepalived process, then this potentially leaked sensitive information.

Published: 2018-11-08 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-19046 is rated Low Risk (28.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.37%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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

Exploit prediction scoring system (EPSS) score for CVE-2018-19046

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 2026-06-15 0.14% 0.37% +0.22%
2 2025-10-09 0.15% 0.14% -0.01%
3 2025-03-30 — 0.15% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-19046

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.7 3.0 MEDIUM
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N 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:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 1.0 3.6 [email protected]
1.9 2.0 LOW
AV:L/AC:M/Au:N/C:P/I:N/A:N 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:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 3.4 2.9 [email protected]

Weakness enumeration for CVE-2018-19046

OS Trackers for CVE-2018-19046

vendor priority summary link
alpine medium CVE-2018-19046: 1 source package rows (keepalived); 7 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 7, open 0. https://security.alpinelinux.org/vuln/CVE-2018-19046
debian unimportant CVE-2018-19046 unimportant priority: Debian including 1 source packages (keepalived), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2018-19046
gentoo normal CVE-2018-19046: 1 GLSA(s) (201903-01), 1 atom(s) (sys-cluster/keepalived); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2018-19046
redhat medium — https://access.redhat.com/security/cve/CVE-2018-19046
suse high CVE-2018-19046 severity important: SUSE including 11 source package names (2.0.19.2.2.10:keepalived-2.0.19-3.3.1, keepalived-2.0.10-6.1, …), 13 product×package rows across 13 product lines (Container ses/7.1/ceph/keepalived, SUSE Linux Enterprise High Availability Extension 15 SP1, … (13 product lines)): Fixed 13. https://www.suse.com/security/cve/CVE-2018-19046/
ubuntu low CVE-2018-19046 low priority: Ubuntu including 1 source packages (keepalived), 19 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 16, ignored 1, needed 1, released 1. https://ubuntu.com/security/CVE-2018-19046

Affected software / configurations for CVE-2018-19046

Vendor Product Version Raw CPE
keepalived keepalived 2.0.8 cpe:2.3:a:keepalived:keepalived:2.0.8:*:*:*:*:*:*:*

References for CVE-2018-19046

URL Tags
https://bugzilla.suse.com/show_bug.cgi?id=1015141 Issue Tracking Third Party Advisory
https://github.com/acassen/keepalived/issues/1048 Patch Third Party Advisory
https://security.gentoo.org/glsa/201903-01 Third Party Advisory
cvelogic Threat Intelligence