How severe is CVE-2019-20326?

CVE-2019-20326 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-20326 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20326?

CVE-2019-20326 primarily affects Gnome Gthumb. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-20326?

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

When was CVE-2019-20326 published?

CVE-2019-20326 was published on 2020-03-16 and last updated on 2026-06-17.

CVE-2019-20326

CVE-2019-20326 is a high-severity vulnerability in Gnome Gthumb with a CVSS 3.x base score of 7.8. 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: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Gnome Gthumb
Published: 2020-03-16
Last modified: 2026-06-17

Description

A heap-based buffer overflow in _cairo_image_surface_create_from_jpeg() in extensions/cairo_io/cairo-image-surface-jpeg.c in GNOME gThumb before 3.8.3 and Linux Mint Pix before 2.4.5 allows attackers to cause a crash and potentially execute arbitrary code via a crafted JPEG file.

Frequently asked questions

What is CVE-2019-20326?: A heap-based buffer overflow in _cairo_image_surface_create_from_jpeg() in extensions/cairo_io/cairo-image-surface-jpeg.c in GNOME gThumb before 3.8.3 and Linux Mint Pix before 2.4.5 allows attackers to cause a crash and potentially execute arbitrary code via a crafted JPEG file.
How severe is CVE-2019-20326?: CVE-2019-20326 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-20326 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20326?: CVE-2019-20326 primarily affects Gnome Gthumb. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-20326?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-20326 published?: CVE-2019-20326 was published on 2020-03-16 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:gnome:gthumb:*:*:*:*:*:*:*:*
cpe:2.3:a:linuxmint:pix:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

More vulnerabilities in Gnome Gthumb

CVE-2018-18718 — High (CVSS 7.8): An issue was discovered in gThumb through 3.6.2. There is a double-free vulnerability in the add_themes_from_dir method…
CVE-2020-36427 — Medium (CVSS 5.5): GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.

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