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CVE-2018-19490

25
FAUCET Score

CVE-2018-19490 is a heap-based buffer overflow vulnerability found in Gnuplot 5.2.5, specifically within the df_generate_ascii_array_entry function in datafile.c. This flaw affects various distributions including Debian and openSUSE. It carries a high CVSS score of 7.8, indicating significant potential impact, as it allows an attacker to achieve high confidentiality, integrity, and availability compromise by providing an overlong string as a range argument to the plot function. While the vulnerability requires user interaction (UI:R) and local access (AV:L), its high impact makes it noteworthy. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
5.2.5CPE matchmatch criteria
cpe:2.3:a:gnuplot:gnuplot:5.2.5:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
15.0CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.55%
Probability of exploitation in next 30 days
EPSS Percentile
72.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0155 is in the 71st percentile among its peer group of 11,616 CVEs.

Social Chatter

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 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2018-19490

gnuplot: heap-based buffer overflow in df_generate_ascii_array_entry

Nov 19, 2018

References

lists.opensuse.org / opensuse-security-announce/2019-04/msg00066.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2018/11/msg00031.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2018/11/msg00035.html
Mailing ListThird Party Advisory
sourceforge.net / p/gnuplot/bugs/2093
ExploitThird Party Advisory
sourceforge.net / p/gnuplot/gnuplot-main/ci/d5020716834582b20a5e12cdd49f39ee4f9dd949
PatchThird Party Advisory
usn.ubuntu.com / 4541-1