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CVE-2018-17953

20
FAUCET Score

CVE-2018-17953 is a high-severity vulnerability affecting specific SUSE and openSUSE Linux distributions, including openSUSE Leap 15.0 and SUSE Linux Enterprise 15. An incorrect variable in a SUSE-specific patch for pam_access rule matching in PAM 1.3.0 can cause security rules to fail open, effectively bypassing intended access restrictions. With a CVSS score of 8.1, this vulnerability is remotely exploitable with high impact on confidentiality, integrity, and availability, requiring no user interaction. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.3.0CPE matchmatch criteria
cpe:2.3:a:kernel:linux-pam:1.3.0:*:*:*:*:*:*:*

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:N/I:H/A:N

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

Exploit Intelligence

EPSS Score
1.34%
Probability of exploitation in next 30 days
EPSS Percentile
68.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0134 is in the 28th percentile among its peer group of 8,914 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 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

Vendor Advisories (1)

redhatCVE-2018-17953Moderate

pam: pam_access.so doesn't properly handle ip addresses and subnets filtering

Nov 11, 2018

References

bugzilla.suse.com / show_bug.cgi