How severe is CVE-2012-0828?

CVE-2012-0828 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2012-0828 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-0828?

CVE-2012-0828 primarily affects Gnome Gtk. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-0828?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2012-0828 published?

CVE-2012-0828 was published on 2020-02-21 and last updated on 2026-06-16.

CVE-2012-0828

CVE-2012-0828 is a critical-severity vulnerability in Gnome Gtk with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Gnome Gtk
Published: 2020-02-21
Last modified: 2026-06-16

Description

Heap-based buffer overflow in Xchat-WDK before 1499-4 (2012-01-18) xchat 2.8.6 on Maemo architecture could allow remote attackers to cause a denial of service (xchat client crash) or execute arbitrary code via a UTF-8 line from server containing characters outside of the Basic Multilingual Plane (BMP).

Frequently asked questions

What is CVE-2012-0828?: Heap-based buffer overflow in Xchat-WDK before 1499-4 (2012-01-18) xchat 2.8.6 on Maemo architecture could allow remote attackers to cause a denial of service (xchat client crash) or execute arbitrary code via a UTF-8 line from server containing characters outside of the Basic Multilingual Plane (BMP).
How severe is CVE-2012-0828?: CVE-2012-0828 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2012-0828 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-0828?: CVE-2012-0828 primarily affects Gnome Gtk. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-0828?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2012-0828 published?: CVE-2012-0828 was published on 2020-02-21 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:gnome:gtk:2.10.4:*:*:*:*:*:*:*
cpe:2.3:a:gnome:gtk:2.14.7:*:*:*:*:*:*:*
cpe:2.3:a:gnome:gtk:2.18.9:*:*:*:*:*:*:*
cpe:2.3:a:gnome:gtk:2.24.7:*:*:*:*:*:*:*
cpe:2.3:a:xchat:xchat:*:*:*:*:*:*:*:*
cpe:2.3:a:xchat-wdk:xchat-wdk:*:*:*:*:*:*:*:*

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