CVE-2025-1122ChromeOS Out-of-Bounds Write
Out-Of-Bounds Write in TPM2 Reference Library in Google ChromeOS 15753.50.0 stable on Cr50 Boards allows an attacker with root access to gain persistence and Bypass operating system verification via exploiting the NV_Read functionality during the Challenge-Response process.
Published Apr 15, 2025 · Updated Oct 6, 2025
Key Facts
Routine patching- CVE-2025-1122 is a medium-severity vulnerability (CVSS 6.7 v3.1) affecting Chrome (Google), ChromeOS.
- It is not listed in any known-exploited vulnerabilities catalog. A public exploit is reported by tracking sources, but no code link is listed yet.
- EPSS estimates a 0.2% probability of exploitation in the next 30 days.
- Fixed versions are available, including ChromeOS 15753.50.0.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Scores
CVSS v3.1
6.7
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
0.2%
Higher than 11.4% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
35/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
4
Proof-of-concept links
In-the-wild evidence
1
Reports of active use
Description
Out-Of-Bounds Write in TPM2 Reference Library in Google ChromeOS 15753.50.0 stable on Cr50 Boards allows an attacker with root access to gain persistence and Bypass operating system verification via exploiting the NV_Read functionality during the Challenge-Response process.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ChromeGoogle | 122.0.6261.132 | n/a |
| ChromeOS | >= 15753.50.0 | 15753.50.0 |
Patched Releases
ChromeOS
15753.50.0
Timeline
Publicly disclosed
Apr 15, 2025
Last updated
Oct 6, 2025
Weakness Type
- CWE-787 Out-of-bounds Write
References
FAQ
Common Questions.
Out-Of-Bounds Write in TPM2 Reference Library in Google ChromeOS 15753.50.0 stable on Cr50 Boards allows an attacker with root access to gain persistence and Bypass operating system verification via exploiting the NV_Read functionality during the Challenge-Response process.
Affected: Chrome (Google) versions 122.0.6261.132; ChromeOS versions >= 15753.50.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
A public exploit is reported by tracking sources, but no code link is listed yet.
Fixed versions are available, including ChromeOS 15753.50.0.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Is CVE-2025-1122 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
Request A Demo