# CVE-2019-1716: Cisco IP Phone 7800 Series and 8800 Series Remote Code Execution Vulnerability

> Unauthenticated remote attackers can execute arbitrary code or cause denial of service on Cisco IP phones via malicious HTTP credentials.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Mar 2019
- **Updated:** 19 Nov 2024
- **Also known as:** GHSA-9798-53mw-wrx7

## What is CVE-2019-1716?

CVE-2019-1716 is a high-severity code injection vulnerability in Cisco IP Phone 7800 Series and 8800 Series, published on 22 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability in the web-based management interface of Session Initiation Protocol (SIP) Software for Cisco IP Phone 7800 Series and Cisco IP Phone 8800 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code. The vulnerability exists because the software improperly validates user-supplied input during user authentication. An attacker could exploit this vulnerability by connecting to an affected device using HTTP and supplying malicious user credentials. A successful exploit could allow the attacker to trigger a reload of an affected device, resulting in a DoS condition, or to execute arbitrary code with the privileges of the app user. Cisco fixed this vulnerability in the following SIP Software releases: 10.3(1)SR5 and later for Cisco Unified IP Conference Phone 8831; 11.0(4)SR3 and later for Cisco Wireless IP Phone 8821 and 8821-EX; and 12.5(1)SR1 and later for the rest of the Cisco IP Phone 7800 Series and 8800 Series.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2019-1716?

It affects 5 products.


Products: Cisco Ip Conference Phone 7800 Firmware, Cisco Ip Phone 8800 Firmware, Cisco Ip Phone 8821-Ex Firmware, Cisco Ip Phone 8821 Firmware, Cisco Unified Ip Conferenece Phone 8831 Firmware.

## How do I fix CVE-2019-1716?

No fix has been published for CVE-2019-1716 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-1716 being exploited?

There is no known exploitation of CVE-2019-1716 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-1716 and fix it if it is affected.

What it is: CVE-2019-1716 is a high-severity code injection vulnerability in Cisco IP Phone 7800 Series and 8800 Series, published on 22 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-1716 in the wild and no public exploit code.

Affected product: Cisco IP Phone 7800 Series and 8800 Series. 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-2019-1716/ (Markdown: https://insights.sbomify.com/CVE-2019-1716/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-1716
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-1716
- OSV: https://osv.dev/vulnerability/CVE-2019-1716

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-1716/
Summaries are generated and may contain mistakes; the official description above is the record.