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CVE-2018-6344

A heap corruption in WhatsApp can be caused by a malformed RTP packet being sent after a call is established. The vulnerability can be…

High7.5EPSS 1.9%
Published
Updated
Reserved
Assigned by
facebook

Description

A heap corruption in WhatsApp can be caused by a malformed RTP packet being sent after a call is established. The vulnerability can be used to cause denial of service. It affects WhatsApp for Android prior to v2.18.293, WhatsApp for iOS prior to v2.18.93, and WhatsApp for Windows Phone prior to v2.18.172.

Scores

CVSS scores of CVE-2018-6344, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
1.9% · top 20% of all CVEs (3 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: partial

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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • Facebook · WhatsApp for Android

    • affected 2.18.293
    • affected unspecified – < 2.18.293

  • Facebook · WhatsApp for iOS

    • affected 2.18.93
    • affected unspecified – < 2.18.93

  • Facebook · WhatsApp for Windows Phone

    • affected 2.18.172
    • affected unspecified – < 2.18.172

References (2)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .