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CVE-2020-1909

30
FAUCET Score

CVE-2020-1909 describes a critical use-after-free vulnerability in WhatsApp and WhatsApp Business for iOS versions prior to 2.20.111. This flaw, rated 9.8 CVSS Critical, could lead to memory corruption, crashes, and potentially remote code execution if an attacker sends a specially crafted animated sticker while the victim is placing a video call on hold. Despite its severity, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.20.111CPE matchmatch criteria
cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:*
< 2.20.111CPE matchmatch criteria
cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.25%
Probability of exploitation in next 30 days
EPSS Percentile
81.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0225 is in the 70th percentile among its peer group of 36,897 CVEs.

Social Chatter

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.

Media 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

Remediation records are not available for this CVE.

References

whatsapp.com / security/advisories/2020
Vendor Advisory