CVE-2020-14049

Name: CVE-2020-14049
Creator: NVD / NIST
Published: 2020-06-22T18:15:11.54+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.16%

Last modified Jun 17, 2026

CVE-2020-14049 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 2.16% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

2.16%

79.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-88

Affected Software

Vendor	Product	Versions
Rakuten	Viber	< 13.2.0.39

References

https://jeffs.sh/CVEs/CVE-2020-14049.txtExploit, Mitigation, Third Party Advisory
https://www.viber.com/en/security/Vendor Advisory
https://jeffs.sh/CVEs/CVE-2020-14049.txtExploit, Mitigation, Third Party Advisory
https://www.viber.com/en/security/Vendor Advisory

Timeline

Published: Jun 22, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-14049?

How severe is CVE-2020-14049?

CVE-2020-14049 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.16% probability of exploitation in the next 30 days.

How do I fix CVE-2020-14049?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-14049?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST