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CVE-2018-20430

22
FAUCET Score

CVE-2018-20430 describes an out-of-bounds read vulnerability in GNU Libextractor versions through 1.8, specifically within the history_extract() function, impacting Debian and GNU Libextractor products. This medium-severity vulnerability (CVSS 6.5) can be triggered remotely with low attack complexity, requiring user interaction, and could lead to a denial of service. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.8CPE matchmatch criteria
cpe:2.3:a:gnu:libextractor:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

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
2.24%
Probability of exploitation in next 30 days
EPSS Percentile
81.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0224 is in the 91st percentile among its peer group of 26,209 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

gnunet.org / bugs/view.php
ExploitIssue TrackingThird Party Advisory
gnunet.org / git/libextractor.git/commit
PatchThird Party Advisory
gnunet.org / git/libextractor.git/tree/ChangeLog
Release NotesThird Party Advisory
lists.debian.org / debian-lts-announce/2018/12/msg00015.html
Mailing ListThird Party Advisory
debian.org / security/2018/dsa-4361
Third Party Advisory
securityfocus.com / bid/106300
Third Party AdvisoryVDB Entry