CVE-2020-1891 is a critical out-of-bounds write vulnerability affecting WhatsApp and WhatsApp Business for both Android and iPhone, specifically versions prior to 2.20.17/2.20.7 and 2.20.20 respectively. This flaw, stemming from a user-controlled parameter during video calls, could allow an attacker to write data outside of allocated memory on 32-bit devices. With a CVSS score of 9.8 (Critical), it presents a severe risk due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.20.17CPE matchmatch criteria | cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:android:*:* | ||
< 2.20.20CPE matchmatch criteria | cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:* | ||
< 2.20.7CPE matchmatch criteria | cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:android:*:* | ||
< 2.20.20CPE matchmatch criteria | cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.