CVE-2020-36774Public exploit

Application crash via unsafe GladeGtkBox rebuilding

Published Feb 19, 2024 · Updated Sep 4, 2024

Denial of service in GNOME Glade before 3.38.1 and 3.39.x before 3.40.0 allows attackers to crash the application via a crafted project file. The post-creation path in plugins/gtk+/glade-gtk-box.c incorrectly rebuilds a GladeGtkBox while opening the file and encounters invalid widget state. Exploitation requires a local user to open the file in Glade; the documented consequence is termination of that Glade process, without reported data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in GNOME Glade before 3.38.1 and 3.39.x before 3.40.0 allows attackers to crash the application via a crafted project file. The post-creation path in plugins/gtk+/glade-gtk-box.c incorrectly rebuilds a GladeGtkBox while opening the file and encounters invalid widget state. Exploitation requires a local user to open the file in Glade; the documented consequence is termination of that Glade process, without reported data disclosure or modification.

The record

CVE
CVE-2020-36774
Published
Feb 19, 2024
Updated
Sep 4, 2024
Vendor
GNOME
Product
Glade
Classifications
CWE-664, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 2024Record 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 <3.38.1
  2. Affected versionversion=3.39.0 <3.40.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

GNOME · Gladeversion=0 <3.38.1; version=3.39.0 <3.40.0

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-664Improper Control of a Resource Through its Lifetime
T1204.002User Execution: Malicious File

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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