CVE-2022-0306
HighHeap 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.
Published Jan 26, 2022 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2022-0306, UBUNTU-CVE-2022-0306
Key Facts
Patch immediately- CVE-2022-0306 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Chrome (Google), qt5-qtwebengine (alpine), chromium (debian) and 15 more products.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 85% probability of exploitation in the next 30 days.
- Fixed versions are available, including Chrome 97.0.4692.99, chromedriver 97.0.4692.99-1.1, chromedriver 97.0.4692.99-bp153.2.57.1.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
85%
Higher than 99.7% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2022-0306 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Affected Products
43 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ChromeGoogle | >= unspecified | 97.0.4692.99 |
| qt5-qtwebenginealpine | See advisory | 5.15.3_git20211127-r4 |
| chromiumdebian | See advisory | 97.0.4692.99-1~deb11u2 |
| chromium-browserubuntu | See advisory | 99.0.4844.51-0ubuntu0.18.04.1 |
| chromedriversuse | See advisory | 97.0.4692.99-bp153.2.57.1 |
Patched Releases
Chrome
97.0.4692.99
chromedriver
97.0.4692.99-1.1, 97.0.4692.99-bp153.2.57.1
chromium
97.0.4692.99-1, 97.0.4692.99-1.1, 97.0.4692.99-1~deb11u2, 97.0.4692.99-bp153.2.57.1
chromium-browser
99.0.4844.51-0ubuntu0.18.04.1
libqt5-qtpdf-devel
5.15.9-1.1
libqt5-qtpdf-examples
5.15.9-1.1
libqt5-qtpdf-imports
5.15.9-1.1
libqt5-qtpdf-private-headers-devel
5.15.9-1.1
libqt5-qtwebengine
5.15.9-1.1
libqt5-qtwebengine-devel
5.15.9-1.1
libqt5-qtwebengine-examples
5.15.9-1.1
libqt5-qtwebengine-private-headers-devel
5.15.9-1.1
libQt5Pdf5
5.15.9-1.1
libQt5PdfWidgets5
5.15.9-1.1
opera
83.0.4254.27-lp153.2.33.1, 85.0.4341.28-lp154.2.5.1
qt5-qtwebengine
5.15.3_git20211127-r4, 5.15.3_git20220121-r4
ungoogled-chromium
113.0.5672.92-1.1
ungoogled-chromium-chromedriver
113.0.5672.92-1.1
Timeline
Publicly disclosed
Jan 26, 2022
Last updated
Aug 4, 2026
Weakness Type
- CWE-787 Out-of-bounds Write
References
- advisoryhttp://packetstormsecurity.com/files/166367/Chrome-chrome_pdf-PDFiumEngine-RequestThumbnail-Heap-Buffer-Overflow.html
- advisoryhttps://chromereleases.googleblog.com/2022/01/stable-channel-update-for-desktop_19.html
- advisoryhttps://crbug.com/1283198
- advisoryhttps://security-tracker.debian.org/tracker/CVE-2022-0306
- advisoryhttps://security-tracker.debian.org/tracker/openjdk-11
FAQ
Common Questions.
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.
Affected: Chrome (Google) versions >= unspecified; qt5-qtwebengine (alpine); chromium (debian), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Chrome 97.0.4692.99, chromedriver 97.0.4692.99-1.1, chromedriver 97.0.4692.99-bp153.2.57.1.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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