How severe is CVE-2020-36427?

CVE-2020-36427 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-36427 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-36427?

CVE-2020-36427 affects Gnome Gthumb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-36427?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-36427 published?

CVE-2020-36427 was published on 2021-07-19 and last updated on 2026-06-17.

CVE-2020-36427

CVE-2020-36427 is a medium-severity vulnerability in Gnome Gthumb with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Gnome Gthumb
Published: 2021-07-19
Last modified: 2026-06-17

Description

GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.

Frequently asked questions

What is CVE-2020-36427?: GNOME gThumb before 3.10.1 allows an application crash via a malformed JPEG image.
How severe is CVE-2020-36427?: CVE-2020-36427 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-36427 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-36427?: CVE-2020-36427 affects Gnome Gthumb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-36427?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-36427 published?: CVE-2020-36427 was published on 2021-07-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gnome:gthumb:*:*:*:*:*:*:*:*

More vulnerabilities in Gnome Gthumb

CVE-2019-20326 — High (CVSS 7.8): A heap-based buffer overflow in _cairo_image_surface_create_from_jpeg() in…
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…

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