# CVE-2016-8507: Security feature bypass in Yandex Browser for iOS

> Remote attackers can initiate unauthorized FaceTime calls and access device camera and microphone via crafted websites in Yandex Browser for iOS.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N`)
- **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:** 1 Mar 2017
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-f5j2-5xm6-3xw5

## What is CVE-2016-8507?

CVE-2016-8507 is a medium-severity vulnerability in Yandex Browser for iOS, published on 1 Mar 2017. 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

Yandex Browser for iOS before 16.10.0.2357 does not properly restrict processing of facetime:// URLs, which allows remote attackers to initiate facetime-call without user's approval and obtain video and audio data from a device via a crafted web site.

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2016-8507?

It affects 1 product.


Products: Yandex Yandex Browser.

## How do I fix CVE-2016-8507?

No fix has been published for CVE-2016-8507 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-8507 being exploited?

There is no known exploitation of CVE-2016-8507 in the wild and no public exploit code.

## Other vulnerabilities in Yandex Browser for iOS

- [CVE-2024-6473](https://insights.sbomify.com/CVE-2024-6473/): DLL Hijacking in Yandex Browser (high 8.4)
- [CVE-2021-25255](https://insights.sbomify.com/CVE-2021-25255/): Yandex Browser Lite for Android prior to version 21.1.0 allows remote attackers to cause a denial of service. (high 8.3)
- [CVE-2021-25254](https://insights.sbomify.com/CVE-2021-25254/): Yandex Browser Lite for Android before 21.1.0 allows remote attackers to spoof the address bar. (high 8.2)
- [CVE-2021-25261](https://insights.sbomify.com/CVE-2021-25261/): Privilege escalation in Yandex Browser (Desktop) (high 7.8)
- [CVE-2022-28225](https://insights.sbomify.com/CVE-2022-28225/): Privilege escalation in Yandex Browser (Desktop) (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-8507 and fix it if it is affected.

What it is: CVE-2016-8507 is a medium-severity vulnerability in Yandex Browser for iOS, published on 1 Mar 2017. 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-2016-8507 in the wild and no public exploit code.

Affected product: Yandex Browser for iOS. 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-2016-8507/ (Markdown: https://insights.sbomify.com/CVE-2016-8507/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-8507
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-8507
- OSV: https://osv.dev/vulnerability/CVE-2016-8507

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-8507/
Summaries are generated and may contain mistakes; the official description above is the record.