CVE-2026-3909
HighExploitedPublic exploitOut of bounds write in Skia in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page.
Published Mar 13, 2026 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2026-3909, DSA-6165-1
Key Facts
Patch immediately- CVE-2026-3909 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Chrome (Google), Edge Chromium (Microsoft), qt6-qtwebengine (alpine) and 8 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 12, 2026. Public exploit code is available.
- EPSS estimates a 2.3% probability of exploitation in the next 30 days.
- Fixed versions are available, including Chrome 146.0.7680.75, Chrome 146.0.7680.80, chromedriver 146.0.7680.80-1.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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)
2.3%
Higher than 83.3% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2026-3909 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Out of bounds write in Skia in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Mar 13, 2026 | Mar 27, 2026 | Not reported |
| Industry KEV feed | Mar 12, 2026 | Mar 27, 2026 | Not reported |
| CIRCL KEV | Mar 13, 2026 | Mar 27, 2026 | Not reported |
| ENISA EUVD | Mar 13, 2026 | n/a | Not reported |
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected Products
42 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ChromeGoogle | >= 146.0.7680.75 | 146.0.7680.80 |
| Edge ChromiumMicrosoft | See advisory | n/a |
| qt6-qtwebenginealpine | See advisory | 6.10.1-r10 |
| chromiumchainguard | See advisory | 146.0.7680.80-r0 |
| webkit2gtkdebian | See advisory | 2.54.0-1 |
Patched Releases
Chrome
146.0.7680.75, 146.0.7680.80
chromedriver
146.0.7680.80-1.1, 146.0.7680.80-bp160.1.1
chromium
146.0.7680.80-1, 146.0.7680.80-1.1, 146.0.7680.80-1~deb12u1, 146.0.7680.80-1~deb13u1, 146.0.7680.80-bp160.1.1, 146.0.7680.80-r0, 147.0.7727.116-r0
qt6-qtwebengine
6.10.1-r10, 6.10.2-r8
webkit2gtk
2.54.0-1, 2.54.0-1~deb13u1
webkit2gtk3
2.54.0-1.el8_10, 2.54.0-1.el9_8
webkit2gtk3-devel
2.54.0-1.el8_10
webkit2gtk3-jsc
2.54.0-1.el8_10
webkit2gtk3-jsc-devel
2.54.0-1.el8_10
wpewebkit
2.54.0-1
Timeline
Added to Industry KEV feed
Mar 12, 2026
Publicly disclosed
Mar 13, 2026
Added to CISA KEV
Mar 13, 2026
Added to CIRCL KEV
Mar 13, 2026
Added to ENISA EUVD
Mar 13, 2026
Last updated
Aug 4, 2026
Weakness Type
- CWE-787 Out-of-bounds Write
References
- advisoryhttps://security-tracker.debian.org/tracker/CVE-2026-3909
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- otherVulnCheck exploitation report
FAQ
Common Questions.
Out of bounds write in Skia in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page.
Affected: Chrome (Google) versions >= 146.0.7680.75; Edge Chromium (Microsoft); qt6-qtwebengine (alpine), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 12, 2026.
Yes. It was added on Mar 13, 2026 with a federal remediation due date of Mar 27, 2026.
Public exploit code is available.
Fixed versions are available, including Chrome 146.0.7680.75, Chrome 146.0.7680.80, chromedriver 146.0.7680.80-1.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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