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CVE-2018-15157

21
FAUCET Score

CVE-2018-15157 describes a heap-based buffer over-read vulnerability in the libfsclfs_block_read function within the libfsclfs library, affecting versions prior to 2018-07-25. This flaw, rated Medium severity (CVSS 6.5), can be triggered remotely by an unauthenticated attacker through a crafted clfs file, potentially leading to a denial of service. Despite the vendor disputing the vulnerability, there is no known active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2018-07-25CPE matchmatch criteria
cpe:2.3:a:libfsclfs_project:libfsclfs:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.46%
Probability of exploitation in next 30 days
EPSS Percentile
70.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0146 is in the 83rd percentile among its peer group of 26,219 CVEs.

Social Chatter

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

Remediation records are not available for this CVE.

References

github.com / libyal/libfsclfs/issues/3
ExploitThird Party Advisory