Security Digest · Vulnerability record
CVE-2025-8217: Inert Malicious script injected into Amazon Q Developer Visual Studio Code (VS Code) Extension
The Amazon Q Developer Visual Studio Code (VS Code) extension v1.84.0 contains inert, injected code designed to call the Q Developer CLI.
CVSS 5.1 Medium EPSS 0.2% · p12 Most can relax
Should you act?
Normal patch cycle
No exploitation signal; fix it in your next routine update if you are affected. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.2%, percentile 12: FIRST’s model estimates a 0.2% chance of exploitation activity in the next 30 days, higher than 12% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Needs local access needed. Lower urgency for most teams unless an attacker could already run code on the machine.
- Editorial verdict: Most can relax. Amazon Q VS Code Extension 1.84.0 Shipped a Wiper Prompt — A real supply-chain compromise with a payload that AWS says could not run; if nothing in your fleet still has 1.84.0, there is nothing left to do.
What it is
The Amazon Q Developer Visual Studio Code (VS Code) extension v1.84.0 contains inert, injected code designed to call the Q Developer CLI. The code executes when the extension is launched within the VS Code environment; however the injected code contains a syntax error which prevents it from making a successful API call to the Q Developer CLI. To mitigate this issue, users should upgrade to version v1.85.0. All installations of v1.84.0 should be removed from use.
Weakness type: CWE-506.
Product: Amazon Q Developer VS Code Extension · Assigned by: AMZN · Published: 2025-07-30
Affected and fixed versions
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| Amazon | Q Developer VS Code Extension | 1.84.0 < 1.85.0, sha256:47f7840ecab6312d2733e1274c513050405886c70f2037fb2f1e9099872b0464 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| AMZN | 4.0 | 5.1 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/U:Amber |
| AMZN | 3.1 | 4 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
- Attack vector: local access needed
- Attack complexity: low
- Attack requirements: none
- Privileges required: none (no login)
- User interaction: none
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none, automatable no, technical impact partial.
- FIRST EPSS (model of 2026-10-21): 0.22% probability of exploitation activity in the next 30 days; percentile 12.
Timeline
- — erroneo.us brief: Amazon Q VS Code Extension 1.84.0 Shipped a Wiper Prompt
- — CVE record published by AMZN
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
- aws.amazon.com aws.amazon.com
- github.com github.com
Vulnerability records
- CVE.org record CVE-2025-8217 cve.org
- NVD entry CVE-2025-8217 nvd.nist.gov
Other references from the CVE record and advisory
- github.com github.com