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CVE-2019-12209

25
FAUCET Score

CVE-2019-12209 affects Yubico pam-u2f version 1.0.7, stemming from improper handling of the configured authentication file. The vulnerability allows an attacker to potentially reveal sensitive information by exploiting a symlink vulnerability when the debug option is enabled. This is a high-severity vulnerability with a CVSS score of 7.5, indicating a network-based attack with low complexity that could lead to high confidentiality impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.7CPE matchmatch criteria
cpe:2.3:a:yubico:pam-u2f:1.0.7:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.89%
Probability of exploitation in next 30 days
EPSS Percentile
85.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0289 is in the 74th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

lists.opensuse.org / opensuse-security-announce/2019-07/msg00012.html
lists.opensuse.org / opensuse-security-announce/2019-07/msg00018.html
developers.yubico.com / pam-u2f/Release_Notes.html
Release NotesVendor Advisory
github.com / Yubico/pam-u2f/commit/7db3386fcdb454e33a3ea30dcfb8e8960d4c3aa3
PatchThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/5FOR4ADC356JPCHAJI5UXZORLC3VNBPS
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/ZCGU6UQLI3ZTW3UYCTMQW7VDL5M4LCWR
openwall.com / lists/oss-security/2019/06/05/1
ExploitMailing ListThird Party Advisory