# CVE-2019-9676: Memory corruption in IPC-HFW1XXX,IPC-HDW1XXX,IPC-HFW2XXX

> A buffer overflow in Dahua IP cameras allows authenticated attackers to execute arbitrary code or cause a device restart.

- **Severity:** High 7.8 (`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **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:** No
- **Published:** 12 Jun 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-hp27-f96r-76hv

## What is CVE-2019-9676?

CVE-2019-9676 is a high-severity memory corruption vulnerability in IPC-HFW1XXX,IPC-HDW1XXX,IPC-HFW2XXX, published on 12 Jun 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Buffer overflow vulnerability found in some Dahua IP Camera devices IPC-HFW1XXX,IPC-HDW1XXX,IPC-HFW2XXX Build before 2018/11. The vulnerability exits in the function of redirection display for serial port printing information, which can not be used by product basic functions. After an attacker logs in locally, this vulnerability can be exploited to cause device restart or arbitrary code execution. Dahua has identified the corresponding security problems in the static code auditing process, so it has gradually deleted this function, which is no longer available in the newer devices and softwares. Dahua has released versions of the affected products to fix the vulnerability.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2019-9676?

It affects 3 products.


Products: Dahuasecurity Ipc-Hdw1xxx Firmware, Dahuasecurity Ipc-Hfw1xxx Firmware, Dahuasecurity Ipc-Hfw2xxx Firmware.

## How do I fix CVE-2019-9676?

No fix has been published for CVE-2019-9676 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-9676 being exploited?

There is no known exploitation of CVE-2019-9676 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-9676 and fix it if it is affected.

What it is: CVE-2019-9676 is a high-severity memory corruption vulnerability in IPC-HFW1XXX,IPC-HDW1XXX,IPC-HFW2XXX, published on 12 Jun 2019. 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-2019-9676 in the wild and no public exploit code.

Affected product: IPC-HFW1XXX,IPC-HDW1XXX,IPC-HFW2XXX. 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-2019-9676/ (Markdown: https://insights.sbomify.com/CVE-2019-9676/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-9676
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-9676
- OSV: https://osv.dev/vulnerability/CVE-2019-9676

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From sbomify Insights: https://insights.sbomify.com/CVE-2019-9676/
Summaries are generated and may contain mistakes; the official description above is the record.