# CVE-2022-26373: Information disclosure in Intel(R) Processors

> Authorized local users can exploit non-transparent return predictor sharing to disclose sensitive information on Intel processors.

- **Severity:** Medium 5.5 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 18 Aug 2022
- **Updated:** 14 Oct 2026
- **Also known as:** DEBIAN-CVE-2022-26373, GHSA-rw9q-5p4j-cc4j, UBUNTU-CVE-2022-26373

## What is CVE-2022-26373?

CVE-2022-26373 is a medium-severity vulnerability in Debian Debian Linux, published on 18 Aug 2022. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Non-transparent sharing of return predictor targets between contexts in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access.

## Which versions are affected by CVE-2022-26373?

It affects 492 products.


Products: Debian Debian Linux, Intel Celeron 5305u Firmware, Intel Celeron 6305 Firmware, Intel Celeron 6305e Firmware, Intel Celeron 6600he Firmware, Intel Celeron 7300 Firmware, Intel Celeron 7305 Firmware, Intel Celeron G5205u Firmware, Intel Celeron G5305u Firmware, Intel Celeron G5900 Firmware, Intel Celeron G5900t Firmware, Intel Celeron G5905 Firmware, Intel Celeron G5905t Firmware, Intel Celeron G5920 Firmware, Intel Celeron G5925 Firmware, Intel Celeron G6900 Firmware, Intel Celeron G6900t Firmware, Intel Core I3-1000g1 Firmware, Intel Core I3-1000g4 Firmware, Intel Core I3-1005g1 Firmware and 472 more.

## How do I fix CVE-2022-26373?

Apply the vendor's patch.

## Is CVE-2022-26373 being exploited?

There is no known exploitation of CVE-2022-26373 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-26373 and fix it if it is affected.

What it is: CVE-2022-26373 is a medium-severity vulnerability in Debian Debian Linux, published on 18 Aug 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-26373 in the wild and no public exploit code.

Affected product: Debian Debian Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2022-26373/ (Markdown: https://insights.sbomify.com/CVE-2022-26373/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-26373
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-26373
- OSV: https://osv.dev/vulnerability/CVE-2022-26373

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-26373/
Summaries are generated and may contain mistakes; the official description above is the record.