How severe is CVE-2021-45481?

CVE-2021-45481 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-45481 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45481?

CVE-2021-45481 affects Webkitgtk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45481?

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

When was CVE-2021-45481 published?

CVE-2021-45481 was published on 2021-12-25 and last updated on 2026-06-17.

CVE-2021-45481

CVE-2021-45481 is a medium-severity vulnerability in Webkitgtk with a CVSS 3.x base score of 6.5. 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-401.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Affected product: Webkitgtk
Published: 2021-12-25
Last modified: 2026-06-17

Description

In WebKitGTK before 2.32.4, there is incorrect memory allocation in WebCore::ImageBufferCairoImageSurfaceBackend::create, leading to a segmentation violation and application crash, a different vulnerability than CVE-2021-30889.

Frequently asked questions

What is CVE-2021-45481?: In WebKitGTK before 2.32.4, there is incorrect memory allocation in WebCore::ImageBufferCairoImageSurfaceBackend::create, leading to a segmentation violation and application crash, a different vulnerability than CVE-2021-30889.
How severe is CVE-2021-45481?: CVE-2021-45481 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-45481 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45481?: CVE-2021-45481 affects Webkitgtk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45481?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-45481 published?: CVE-2021-45481 was published on 2021-12-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:*

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