CVE-2025-31178Public exploit

Local process crash via invalid annotation pointer

Published Mar 27, 2025 · Updated Jun 25, 2026

A NULL pointer dereference in Gnuplot before 6.0 allows local users to crash the plotting process through crafted input. GetAnnotateString in src/mouse.c processes unvalidated annotation data with sprintf, leading to an invalid read during status-line rendering. A local user must cause Gnuplot to process crafted plot input; the demonstrated consequence is termination of the Gnuplot process.

CVSS severity6.2
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A NULL pointer dereference in Gnuplot before 6.0 allows local users to crash the plotting process through crafted input. GetAnnotateString in src/mouse.c processes unvalidated annotation data with sprintf, leading to an invalid read during status-line rendering. A local user must cause Gnuplot to process crafted plot input; the demonstrated consequence is termination of the Gnuplot process.

The record

CVE
CVE-2025-31178
Published
Mar 27, 2025
Updated
Jun 25, 2026
Vendor
Gnuplot
Product
Gnuplot
Classifications
CWE-476
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <6.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Gnuplot · Gnuplotversion=0 <6.0

Published CVSS scores

6.2Red HatCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-476NULL Pointer Dereference

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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