How severe is CVE-2022-0306?

CVE-2022-0306 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-0306 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 85% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-0306?

CVE-2022-0306 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-0306?

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-2022-0306 published?

CVE-2022-0306 was published on 2022-02-12 and last updated on 2026-06-17.

CVE-2022-0306

CVE-2022-0306 is a high-severity vulnerability in Google Chrome with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 85% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 85% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Google Chrome
Published: 2022-02-12
Last modified: 2026-06-17

Description

Heap buffer overflow in PDFium in Google Chrome prior to 97.0.4692.99 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Frequently asked questions

What is CVE-2022-0306?: Heap buffer overflow in PDFium in Google Chrome prior to 97.0.4692.99 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
How severe is CVE-2022-0306?: CVE-2022-0306 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-0306 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 85% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-0306?: CVE-2022-0306 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-0306?: 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-2022-0306 published?: CVE-2022-0306 was published on 2022-02-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

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