CVE-2026-7339: Heap buffer overflow in WebRTC
Chromium: CVE-2026-7339 Heap buffer overflow in WebRTC
Other sources
Heap buffer overflow in WebRTC in Google Chrome prior to 147.0.7727.138 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)
— NVD
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Credit
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Chromium (WebRTC) / Google Chrome / Microsoft Edge (Chromium-based)to a version that resolves this vulnerability.Fixed in 147.0.7727.138
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2026-12034
- CVE-2026-7922
- CVE-2026-13033
- CVE-2026-9970
- CVE-2026-10969
- CVE-2026-10003
- CVE-2026-9933
- CVE-2026-9993
- CVE-2026-9961
- CVE-2026-9995
- CVE-2026-12439
- CVE-2026-10905
- CVE-2026-8557
- CVE-2026-9903
- CVE-2026-8559
- CVE-2026-6920
- CVE-2026-8524
- CVE-2026-10007
- CVE-2026-12008
- CVE-2026-12440
- CVE-2026-6360
- CVE-2026-12441
- CVE-2026-7348
Frequently Asked Questions
What is the severity of CVE-2026-7339?
CVE-2026-7339 has a high severity rating of 8.8 on the CVSS scale.
How do I fix CVE-2026-7339?
To mitigate CVE-2026-7339, update Google Chrome to version 147.0.7727.138 or later.
What type of vulnerability is CVE-2026-7339?
CVE-2026-7339 is classified as a heap buffer overflow vulnerability in WebRTC.
Which software is affected by CVE-2026-7339?
CVE-2026-7339 affects Google Chrome and Microsoft Edge (Chromium-based) prior to the patched versions.
What is the potential impact of CVE-2026-7339?
If exploited, CVE-2026-7339 could allow a remote attacker to cause heap corruption via a specially crafted HTML page.