How severe is CVE-2020-14049?

CVE-2020-14049 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-14049 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-14049?

CVE-2020-14049 affects Rakuten Viber. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-14049?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-14049 published?

CVE-2020-14049 was published on 2020-06-22 and last updated on 2026-06-17.

CVE-2020-14049

CVE-2020-14049 is a high-severity vulnerability in Rakuten Viber with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-88.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-88
Affected product: Rakuten Viber
Published: 2020-06-22
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-14049?: 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.
How severe is CVE-2020-14049?: CVE-2020-14049 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-14049 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-14049?: CVE-2020-14049 affects Rakuten Viber. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-14049?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-14049 published?: CVE-2020-14049 was published on 2020-06-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:rakuten:viber:*:*:*:*:*:windows:*:*

More vulnerabilities in Rakuten Viber

CVE-2025-13476 — Critical (CVSS 9.8): Rakuten Viber Cloak mode in Android v25.7.2.0g and Windows v25.6.0.0–v25.8.1.0 uses a static and predictable TLS…
CVE-2019-18800 — High (CVSS 8.8): Viber through 11.7.0.5 allows a remote attacker who can capture a victim's internet traffic to steal their Viber…
CVE-2019-12569 — High (CVSS 7.8): A vulnerability in Viber before 10.7.0 for Desktop (Windows) could allow an attacker to execute arbitrary commands on a…
CVE-2025-55996 — Medium (CVSS 6.3): Viber Desktop 25.6.0 is vulnerable to HTML Injection via the text parameter of the message compose/forward interface
CVE-2018-3987 — Medium (CVSS 5.5): An exploitable information disclosure vulnerability exists in the 'Secret Chats' functionality of Rakuten Viber on…

All CVEs affecting Rakuten Viber →

Other CWE-88 (Argument Injection) vulnerabilities

CVE-2026-57572 — Critical (CVSS 10.0): Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, the Docker API server accepted…
CVE-2026-40281 — Critical (CVSS 10.0): Gotenberg is a Docker-powered stateless API for PDF files. In versions 8.30.1 and earlier, the metadata write endpoint…
CVE-2023-6269 — Critical (CVSS 10.0): An argument injection vulnerability has been identified in the administrative web interface of the Atos Unify…
CVE-2007-0882 — Critical (CVSS 10.0): Argument injection vulnerability in the telnet daemon (in.telnetd) in Solaris 10 and 11 (SunOS 5.10 and 5.11)…
CVE-2004-0480 — Critical (CVSS 10.0): Argument injection vulnerability in IBM Lotus Notes 6.0.3 and 6.5 allows remote attackers to execute arbitrary code via…
CVE-1999-0113 — Critical (CVSS 10.0): Some implementations of rlogin allow root access if given a -froot parameter.

Browse all CWE-88 (Argument Injection) vulnerabilities →