CVE-2026-78952: google chrome Out-of-bounds Write
Vulnerability summary
CVE-2026-78952 is a high (CVSS 8.3) Out-of-bounds Write vulnerability in google chrome. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 34.7% of scored vulnerabilities.
Not severe (CVSS 8.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 25-08-2026PublishedVulnerability first disclosed.
- 27-08-2026Last modifiedVulnerability information updated.
Description
Out of bounds write in Crashpad in Google Chrome on on Windows prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
CVSS metrics
3 scores · 3 sources · 1 version- OSV · DebianEcosystem advisory · calculated8.3HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
- NVDNIST8.3HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS trend
Probability
0.40%
Chance of exploitation in the next 30 days
Percentile
35%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.40% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- chromium< 152.0.7977.75-1~deb12u1 | < 152.0.7977.75-1~deb13u1 | < 152.0.7977.64-1
Google1 product
- chrome≥ 152.0.7977.65, < 152.0.7977.65 | < 152.0.7977.65
2 vendors · 2 products
References
3 links- chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.htmlRelease NotesVendor Advisory
- issues.chromium.org/issues/545820931Permissions Required
