# CVE-2026-15270: D-link DIR-823G Web boa.conf least privilege violation

> Remote attackers can exploit a least privilege violation in the web interface configuration to escalate privileges on D-link DIR-823G routers.

- **Severity:** High 7.7 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P`)
- **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:** 9 Jul 2026
- **Updated:** 10 Jul 2026
- **Also known as:** GHSA-fcxp-r92v-x7h2

## What is CVE-2026-15270?

CVE-2026-15270 is a high-severity vulnerability in Dlink Dir-823g Firmware, published on 9 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A weakness has been identified in D-link DIR-823G 1.0.2B05_20181207. Affected by this vulnerability is an unknown functionality of the file /etc/boa/boa.conf of the component Web Interface. Executing a manipulation can lead to least privilege violation. The attack can be launched remotely. The attack requires a high level of complexity. The exploitation appears to be difficult. The exploit has been made available to the public and could be used for attacks.

Weakness: CWE-272 (Least Privilege Violation), CWE-266 (Incorrect Privilege Assignment)

## Which versions are affected by CVE-2026-15270?

It affects 1 product.


Products: Dlink Dir-823g Firmware.

## How do I fix CVE-2026-15270?

No fix has been published for CVE-2026-15270 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-15270 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15270 exists.

## Other vulnerabilities in Dlink Dir-823g Firmware

- [CVE-2023-43235](https://insights.sbomify.com/CVE-2023-43235/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-43241](https://insights.sbomify.com/CVE-2023-43241/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-26612](https://insights.sbomify.com/CVE-2023-26612/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-26613](https://insights.sbomify.com/CVE-2023-26613/): Command injection in n/a (critical 9.8)
- [CVE-2023-26616](https://insights.sbomify.com/CVE-2023-26616/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-15270 and fix it if it is affected.

What it is: CVE-2026-15270 is a high-severity vulnerability in Dlink Dir-823g Firmware, published on 9 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15270 exists.

Affected product: Dlink Dir-823g Firmware. 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-2026-15270/ (Markdown: https://insights.sbomify.com/CVE-2026-15270/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-15270
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-15270
- OSV: https://osv.dev/vulnerability/CVE-2026-15270

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-15270/
Summaries are generated and may contain mistakes; the official description above is the record.