How severe is CVE-2018-19046?

CVE-2018-19046 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-19046 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-19046?

CVE-2018-19046 affects Keepalived. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-19046?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-19046 published?

CVE-2018-19046 was published on 2018-11-08 and last updated on 2026-06-17.

CVE-2018-19046

CVE-2018-19046 is a medium-severity vulnerability in Keepalived with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
CVSS v2: 1.9
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Keepalived
Published: 2018-11-08
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2018-19046?: CVE-2018-19046 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-19046 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-19046?: CVE-2018-19046 affects Keepalived. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-19046?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-19046 published?: CVE-2018-19046 was published on 2018-11-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:keepalived:keepalived:2.0.8:*:*:*:*:*:*:*

More vulnerabilities in Keepalived

CVE-2018-19115 — Critical (CVSS 9.8): keepalived before 2.0.7 has a heap-based buffer overflow when parsing HTTP status codes resulting in DoS or possibly…
CVE-2018-19045 — High (CVSS 7.5): keepalived 2.0.8 used mode 0666 when creating new temporary files upon a call to PrintData or PrintStats, potentially…
CVE-2021-44225 — Medium (CVSS 5.4): In Keepalived through 2.2.4, the D-Bus policy does not sufficiently restrict the message destination, allowing any user…
CVE-2018-19044 — Medium (CVSS 4.7): keepalived 2.0.8 didn't check for pathnames with symlinks when writing data to a temporary file upon a call to…
CVE-2011-1784 — Low (CVSS 3.6): The pidfile_write function in core/pidfile.c in keepalived 1.2.2 and earlier uses 0666 permissions for the (1)…

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