# CVE-2020-27133: Cisco Jabber Desktop and Mobile Client Software Vulnerabilities

> Attackers can execute arbitrary programs with elevated privileges or access sensitive information in Cisco Jabber clients.

- **Severity:** Critical 9.9 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Dec 2020
- **Updated:** 13 Nov 2024
- **Also known as:** GHSA-5xx2-xmgx-crvj

## What is CVE-2020-27133?

CVE-2020-27133 is a critical vulnerability in Cisco Jabber, published on 11 Dec 2020. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Multiple vulnerabilities in Cisco Jabber for Windows, Jabber for MacOS, and Jabber for mobile platforms could allow an attacker to execute arbitrary programs on the underlying operating system (OS) with elevated privileges or gain access to sensitive information. For more information about these vulnerabilities, see the Details section of this advisory.

Weakness: CWE-269 (Improper Privilege Management), CWE-201 (Insertion of Sensitive Information Into Sent Data)

## Which versions are affected by CVE-2020-27133?

It affects 2 products.


Products: Cisco Jabber, Cisco Jabber for Mobile Platforms.

## How do I fix CVE-2020-27133?

No fix has been published for CVE-2020-27133 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-27133 being exploited?

There is no known exploitation of CVE-2020-27133 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Jabber

- [CVE-2021-1411](https://insights.sbomify.com/CVE-2021-1411/): Cisco Jabber Desktop and Mobile Client Software Vulnerabilities (critical 9.9)
- [CVE-2021-1417](https://insights.sbomify.com/CVE-2021-1417/): Cisco Jabber Desktop and Mobile Client Software Vulnerabilities (critical 9.9)
- [CVE-2021-1418](https://insights.sbomify.com/CVE-2021-1418/): Cisco Jabber Desktop and Mobile Client Software Vulnerabilities (critical 9.9)
- [CVE-2021-1469](https://insights.sbomify.com/CVE-2021-1469/): Cisco Jabber Desktop and Mobile Client Software Vulnerabilities (critical 9.9)
- [CVE-2021-1471](https://insights.sbomify.com/CVE-2021-1471/): Cisco Jabber Desktop and Mobile Client Software Vulnerabilities (critical 9.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-27133 and fix it if it is affected.

What it is: CVE-2020-27133 is a critical vulnerability in Cisco Jabber, published on 11 Dec 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-27133 in the wild and no public exploit code.

Affected product: Cisco Jabber. 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-2020-27133/ (Markdown: https://insights.sbomify.com/CVE-2020-27133/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-27133
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-27133
- OSV: https://osv.dev/vulnerability/CVE-2020-27133

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-27133/
Summaries are generated and may contain mistakes; the official description above is the record.