Known exploited vulnerability
CVE-2019-3568
The short answer
CVE-2019-3568 affects Facebook WhatsApp for Android and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-04-19: attackers are using it, so patch it first.
What it is
A buffer overflow vulnerability in WhatsApp VOIP stack allowed remote code execution via specially crafted series of RTCP packets sent to a target phone number. The issue affects WhatsApp for Android prior to v2.19.134, WhatsApp Business for Android prior to v2.19.44, WhatsApp for iOS prior to v2.19.51, WhatsApp Business for iOS prior to v2.19.51, WhatsApp for Windows Phone prior to v2.18.348, and WhatsApp for Tizen prior to v2.18.15.
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Apr 19, 2022
Federal due date May 10, 2022
EPSS, next 30 days
30%
Higher than 98% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected products
WhatsApp for Android, WhatsApp Business for Android, WhatsApp for iOS, WhatsApp Business for iOS, WhatsApp for Windows Phone, WhatsApp for Tizen. NVD's record lists the exact affected versions.
References
- www.facebook.com/security/advisories/cve-2019-3568 Third Party Advisory
- www.facebook.com/security/advisories/cve-2019-3568 Third Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-3568 US Government Resource
Questions
Is CVE-2019-3568 being exploited?
Yes. CISA added CVE-2019-3568 to its Known Exploited Vulnerabilities catalog on 2022-04-19, with a federal remediation due date of 2022-05-10.
How do I fix CVE-2019-3568?
CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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