CVE-2026-9123 json
Heap buffer overflow in Chromecast in Google Chrome on Android, Linux, ChromeOS prior to 148.0.7778.179 allowed a local attacker to execute…
published 2026-05-20 5 mo ago modified 2026-07-23 3 mo ago also EUVD-2026-31170
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 8%
- public exploits
- 0
- none known
Summary
Heap buffer overflow in Chromecast in Google Chrome on Android, Linux, ChromeOS prior to 148.0.7778.179 allowed a local attacker to execute arbitrary code inside a sandbox via malicious network traffic. (Chromium security severity: Medium)
Patch / fix
- google chrome 148.0.7778.179
- chromium Debian 12 148.0.7778.178-1~deb12u1
- chromium Debian 13 148.0.7778.178-1~deb13u1
- chromium Debian 14 148.0.7778.178-1
debian advisories DEBIAN-CVE-2026-9123
- chromium openSUSE Leap 16.0 148.0.7778.215-bp160.1.1
- chromium openSUSE Tumbleweed 148.0.7778.178-1.1
opensuse advisories openSUSE-SU-2026:20849-1openSUSE-SU-2026:10841-1
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2026-9123 updated cvss 7.8
chromium-browser: Heap buffer overflow in Chromecast
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Google Chrome
Classification
- Weakness
-
- CWE-122 Heap-based Buffer Overflow
- Technology feeds
References
-
chromereleases.googleblog.com
/2026/05/stable-channel-update-for-desktop_0841193308.html
vendor-advisory
-
issues.chromium.org
/issues/495988507
permissions-required
Sources
- CVE List CVE-2026-9123
- NVD CVE-2026-9123
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.