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CVE-2018-19211

22
FAUCET Score

CVE-2018-19211 describes a NULL pointer dereference vulnerability in ncurses 6.1, specifically within the _nc_parse_entry function in parse_entry.c, which can lead to a denial of service. This flaw occurs even after the system detects a "dubious character" in name or alias fields. Rated Medium severity with a CVSS score of 5.5 (AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H), it requires local access and user interaction for exploitation, primarily impacting system availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
6.1CPE matchmatch criteria
cpe:2.3:a:invisible-island:ncurses:6.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.86%
Probability of exploitation in next 30 days
EPSS Percentile
54.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0086 is in the 63rd percentile among its peer group of 5,765 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 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

Vendor Patches (4)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: ncurses
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: ncurses
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: ncurses
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: ncurses

Vendor Advisories (1)

redhatCVE-2018-19211Low

ncurses: Null pointer dereference at function _nc_parse_entry in parse_entry.c

Oct 28, 2018

References

bugzilla.redhat.com / show_bug.cgi
ExploitIssue TrackingThird Party Advisory