# CVE-2021-34576: Observable discrepancy in Kaden PICOFLUX AiR leaks water consumption

> Attackers can infer sensitive water consumption data from observable discrepancies in Kaden PICOFLUX AiR devices.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Sep 2021
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-g64f-mxrq-5h8c

## What is CVE-2021-34576?

CVE-2021-34576 is a medium-severity vulnerability in Kaden PICOFLUX AiR, published on 16 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In Kaden PICOFLUX Air in all known versions an information exposure through observable discrepancy exists. This may give sensitive information (water consumption without distinct values) to third parties.

Weakness: CWE-203 (Observable Discrepancy)

## Which versions are affected by CVE-2021-34576?

It affects 1 product.


Products: Kadenvodomery Picoflux Air Firmware.

## How do I fix CVE-2021-34576?

No fix has been published for CVE-2021-34576 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-34576 being exploited?

There is no known exploitation of CVE-2021-34576 in the wild and no public exploit code.

## Other vulnerabilities in Kaden PICOFLUX AiR

- [CVE-2021-34577](https://insights.sbomify.com/CVE-2021-34577/): Hardcoded credentials in Kaden PICOFLUX AiR (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-34576 and fix it if it is affected.

What it is: CVE-2021-34576 is a medium-severity vulnerability in Kaden PICOFLUX AiR, published on 16 Sep 2021. 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-2021-34576 in the wild and no public exploit code.

Affected product: Kaden PICOFLUX AiR. 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-2021-34576/ (Markdown: https://insights.sbomify.com/CVE-2021-34576/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-34576
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-34576
- OSV: https://osv.dev/vulnerability/CVE-2021-34576

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-34576/
Summaries are generated and may contain mistakes; the official description above is the record.