Patch Forecast
Amber warning
Patch this week.

CVE-2026-78964

Chrome: use-after-free can lead to remote code execution

Risk score
76/100
CVSS
9.6 v3.1
Exploit chance (30 days)
0.5%
Published
25 Aug 2026

Open in the live forecast Today's forecast

What to know

What it is
A use after free vulnerability in Google Chrome on iOS prior to 152.0.7977.65 allows a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page.
Affected
{'product': 'Google Chrome', 'package': [], 'version': 'prior to 152.0.7977.65'}
Fix
Upgrade to version 152.0.7977.65 or later
Exploitation
No known exploitation

Story map

Story map: ChromeTHE FLAWSTHE FIXCVE-2026-78964Use-after-free can lead toremote code executionCVSS 9.6 · EPSS 0%CVE-2026-110136Use-after-free can lead toremote code executionCVSS 9.6 · EPSS 0%CVE-2026-106329Incorrect authorisation canlead to remote code executionCVSS 9.6 · EPSS 0%CVE-2026-106417Integer overflow can lead toremote code executionCVSS 9.6 · EPSS 0%Upgrade Chrome152.0.7977.65 · 155.0.8059.79· 155.0.8059.39or later on your release lineWho is exposed{'product': 'Google Chrome','package': [], 'version': 'prior to152.0.7977.65'}AMBER · PATCH THIS WEEKChromeA use after free vulnerability inGoogle Chrome on iOS prior to152.0.7977.65 allows a remoteattacker to potentially executearbitrary code outside thesandbox via a crafted HTMLpage.Where it standsNo known exploitationHOW IT UNFOLDEDOfficial record on the left, the press on the right, oldest first.16 Oct · Microsoft Security Response CenterChromium CVE-2026-110136: Use after free16 Oct · Microsoft Security Response CenterChromium CVE-2026-106329: Incorrectauthorization16 Oct · Microsoft Security Response CenterChromium CVE-2026-106417: Integer overflow28 Oct · Microsoft Security Response CenterChromium: CVE-2026-78964 Use after free inSyncCONNECTS TOSame weaknessUse-after-free (CWE-416)400 other warnings in 30 days →Same productEarlier Chrome warnings397 in the last 90 days →
Story map: the flaws, the fix, how it unfolded and what it connects to. Boxes link to the record or article.

At a glance

Chrome: Amber, patch this week. A use after free vulnerability in Google Chrome on iOS prior to 152.0.7977.65 allows a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page.

The flaws

  • CVE-2026-78964: Use-after-free can lead to remote code execution (CVSS 9.6 · EPSS 0%)
  • CVE-2026-110136: Use-after-free can lead to remote code execution (CVSS 9.6 · EPSS 0%)
  • CVE-2026-106329: Incorrect authorisation can lead to remote code execution (CVSS 9.6 · EPSS 0%)
  • CVE-2026-106417: Integer overflow can lead to remote code execution (CVSS 9.6 · EPSS 0%)

The fix

Upgrade Chrome: 152.0.7977.65 · 155.0.8059.79 · 155.0.8059.39 or later on your release line

Who is exposed: {'product': 'Google Chrome', 'package': [], 'version': 'prior to 152.0.7977.65'}

Where it stands

  • No known exploitation

How it unfolded

  1. 16 Oct, Microsoft Security Response Center (official): Chromium CVE-2026-110136: Use after free
  2. 16 Oct, Microsoft Security Response Center (official): Chromium CVE-2026-106329: Incorrect authorization
  3. 16 Oct, Microsoft Security Response Center (official): Chromium CVE-2026-106417: Integer overflow
  4. 28 Oct, Microsoft Security Response Center (official): Chromium: CVE-2026-78964 Use after free in Sync

Connects to

Why it is Amber

  • CVSS 9.6 critical
  • Remotely exploitable without logging in
  • Named in a government or vendor bulletin

Government and vendor bulletins

References

Original description

Use after free in Sync in Google Chrome on on iOS prior to 152.0.7977.65 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Low)

Last activity 28 Oct 2026. Patch Forecast updates every hour.