What’s Vulnerable › Vulnerabilities

CVE-2021-37984

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-11-02 · updated 2026-06-17
• Weakness: CWE-787

Description

Heap buffer overflow in PDFium in Google Chrome prior to 95.0.4638.54 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Affected products

• Debian Linux: 10.0, 11.0
• Google Chrome: before 95.0.4638.54 — fixed in 95.0.4638.54

How to fix

Upgrade to a fixed version: Google Chrome 95.0.4638.54. Check the vendor advisory for mitigations.

References

• https://chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop_19.html
• https://crbug.com/1253399
• https://www.debian.org/security/2022/dsa-5046
• https://chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop_19.html
• https://crbug.com/1253399
• https://www.debian.org/security/2022/dsa-5046

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