# CVE-2021-27232: Memory corruption in n/a

> Remote attackers can execute arbitrary code via a stack-based buffer overflow in the RTSPLive555.dll ActiveX control when victims visit malicious webpages.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 16 Feb 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-w8j5-vv54-4f5v

## What is CVE-2021-27232?

CVE-2021-27232 is a high-severity memory corruption vulnerability in n/a, published on 16 Feb 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The RTSPLive555.dll ActiveX control in Pelco Digital Sentry Server 7.18.72.11464 has a SetCameraConnectionParameter stack-based buffer overflow. This can be exploited by a remote attacker to potentially execute arbitrary attacker-supplied code. The victim would have to visit a malicious webpage using Internet Explorer where the exploit could be triggered.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2021-27232?

It affects 1 product.


Products: Pelco Digital Sentry Server.

## How do I fix CVE-2021-27232?

No fix has been published for CVE-2021-27232 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-27232 being exploited?

There is no known exploitation of CVE-2021-27232 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-27197](https://insights.sbomify.com/CVE-2021-27197/): Path traversal in n/a (high 8.1)
- [CVE-2021-27184](https://insights.sbomify.com/CVE-2021-27184/): XML external entity in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-27232 and fix it if it is affected.

What it is: CVE-2021-27232 is a high-severity memory corruption vulnerability in n/a, published on 16 Feb 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-27232 in the wild and no public exploit code.

Affected product: n/a. 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-2021-27232/ (Markdown: https://insights.sbomify.com/CVE-2021-27232/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-27232
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-27232
- OSV: https://osv.dev/vulnerability/CVE-2021-27232

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-27232/
Summaries are generated and may contain mistakes; the official description above is the record.