How severe is CVE-2017-12164?

CVE-2017-12164 has a CVSS 3.x base score of 4.1, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2017-12164 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-12164?

CVE-2017-12164 affects Gnome Gnome Display Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-12164?

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

When was CVE-2017-12164 published?

CVE-2017-12164 was published on 2018-07-26 and last updated on 2026-06-17.

CVE-2017-12164

CVE-2017-12164 is a medium-severity vulnerability in Gnome Gnome Display Manager with a CVSS 3.x base score of 4.1. 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-665.

Key facts

Severity: Medium (CVSS 3.x base score 4.1)
CVSS v2: 6.9
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-665
Affected product: Gnome Gnome Display Manager
Published: 2018-07-26
Last modified: 2026-06-17

Description

A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin. If autologin was enabled for a victim, an attacker could simply select 'login as another user' to unlock their screen.

Frequently asked questions

What is CVE-2017-12164?: A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin. If autologin was enabled for a victim, an attacker could simply select 'login as another user' to unlock their screen.
How severe is CVE-2017-12164?: CVE-2017-12164 has a CVSS 3.x base score of 4.1, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2017-12164 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-12164?: CVE-2017-12164 affects Gnome Gnome Display Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-12164?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-12164 published?: CVE-2017-12164 was published on 2018-07-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gnome:gnome_display_manager:3.24.1:*:*:*:*:*:*:*

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