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Known exploited vulnerability

CVE-2019-18426

highCVSS 3.1 8.2In CISA KEVEPSS 68%Published · Facebook

The short answer

CVE-2019-18426 affects Facebook WhatsApp Desktop and is rated high (CVSS 8.2). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-05-23: attackers are using it, so patch it first.

What it is

A vulnerability in WhatsApp Desktop versions prior to 0.3.9309 when paired with WhatsApp for iPhone versions prior to 2.20.10 allows cross-site scripting and local file reading. Exploiting the vulnerability requires the victim to click a link preview from a specially crafted text message.

Weakness: CWE-79.

Severity

8.2 high

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

Exploited (CISA KEV)

Yes, since May 23, 2022

Federal due date Jun 13, 2022

EPSS, next 30 days

68%

Higher than 99% of scored CVEs

How it can be exploited

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Changed
Confidentiality impact
High
Integrity impact
Low
Availability impact
None

What CISA says to do

Apply updates per vendor instructions.

Affected products

WhatsApp Desktop. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2019-18426 being exploited?

Yes. CISA added CVE-2019-18426 to its Known Exploited Vulnerabilities catalog on 2022-05-23, with a federal remediation due date of 2022-06-13.

How do I fix CVE-2019-18426?

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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