Vulnerability · Published Nov 6, 2025 · Assigned by AMZN

CVE-2025-12815

Medium 4.3

In plain English

A medium-severity security flaw in Research and Engineering Studio (RES) from AWS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 76.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

An ownership verification issue in the Virtual Desktop preview page in the Research and Engineering Studio (RES) on AWS before version 2025.09 may allow an authenticated remote user to view another user's active desktop session metadata, including periodical desktop preview screenshots. To mitigate this issue, users should upgrade to version 2025.09 or above.

Affected products (as reported)

Vendor	Product	Versions
AWS	Research and Engineering Studio (RES)	see references

Weakness: CWE-283 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

https://aws.amazon.com/security/security-bulletins/AWS-2025-026/ vendor-advisory
https://github.com/aws/res/releases/tag/2025.09 patch
https://github.com/aws/res/security/advisories/GHSA-x3cx-g8g9-75hv vendor-advisory