Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2017-18199

23
FAUCET Score

CVE-2017-18199 is a NULL Pointer Dereference vulnerability affecting GNU libcdio versions prior to 1.0.0, specifically within the realloc_symlink function in rock.c. This medium-severity vulnerability (CVSS 6.5) can be triggered remotely by an unauthenticated attacker via user interaction (e.g., opening a crafted ISO file), leading to a denial of service. There is 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
< 1.0.0CPE matchmatch criteria
cpe:2.3:a:gnu:libcdio:*:*:*:*:*:*:*:*

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
3.33%
Probability of exploitation in next 30 days
EPSS Percentile
87.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0333 is in the 94th percentile among its peer group of 26,221 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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libcdio-0:0.92-3.el7
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libcdio

Vendor Advisories (1)

redhatCVE-2017-18199Low

libcdio: NULL pointer dereference in realloc_symlink in rock.c

Feb 27, 2018

References

ftp.gnu.org / gnu/libcdio/libcdio-1.0.0.tar.gz
Vendor Advisory
access.redhat.com / errata/RHSA-2018:3246
savannah.gnu.org / bugs
ExploitThird Party Advisory
securityfocus.com / bid/103202
Third Party AdvisoryVDB Entry