# CVE-2020-14049: Other in n/a

> A malicious website can force Viber to send NTLM authentication requests, allowing attackers to capture hashes or relay authentication.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:** Not needed
- **Fix available:** No
- **Published:** 22 Jun 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-r3v6-qx45-r3j8

## What is CVE-2020-14049?

CVE-2020-14049 is a high-severity vulnerability in n/a, published on 22 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Viber for Windows up to 13.2.0.39 does not properly quote its custom URI handler. A malicious website could launch Viber with arbitrary parameters, forcing a victim to send an NTLM authentication request, and either relay the request or capture the hash for offline password cracking. NOTE: this issue exists because of an incomplete fix for CVE-2019-12569.

Weakness: CWE-88 (Improper Neutralization of Argument Delimiters in a Command)

## Which versions are affected by CVE-2020-14049?

It affects 1 product.


Products: Rakuten Viber.

## How do I fix CVE-2020-14049?

No fix has been published for CVE-2020-14049 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-14049 being exploited?

There is no known exploitation of CVE-2020-14049 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2025-13476](https://insights.sbomify.com/CVE-2025-13476/): Rakuten Viber uses broken or risky cryptographic Algorithm (critical 9.8)
- [CVE-2019-18800](https://insights.sbomify.com/CVE-2019-18800/): Information disclosure in n/a (high 8.8)
- [CVE-2019-12569](https://insights.sbomify.com/CVE-2019-12569/): Path traversal in n/a (high 7.8)
- [CVE-2025-55996](https://insights.sbomify.com/CVE-2025-55996/): Cross-site scripting in n/a (medium 6.3)
- [CVE-2018-3987](https://insights.sbomify.com/CVE-2018-3987/): Information disclosure in Rakuten Viber (medium 4.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-14049 and fix it if it is affected.

What it is: CVE-2020-14049 is a high-severity vulnerability in n/a, published on 22 Jun 2020. 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-2020-14049 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-2020-14049/ (Markdown: https://insights.sbomify.com/CVE-2020-14049/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-14049
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-14049
- OSV: https://osv.dev/vulnerability/CVE-2020-14049

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-14049/
Summaries are generated and may contain mistakes; the official description above is the record.