How severe is CVE-2020-1907?

CVE-2020-1907 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-1907 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-1907?

CVE-2020-1907 primarily affects Whatsapp. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-1907?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-1907 published?

CVE-2020-1907 was published on 2020-10-06 and last updated on 2026-06-17.

CVE-2020-1907

CVE-2020-1907 is a critical-severity vulnerability in Whatsapp with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Whatsapp
Published: 2020-10-06
Last modified: 2026-06-17

Description

A stack overflow in WhatsApp for Android prior to v2.20.196.16, WhatsApp Business for Android prior to v2.20.196.12, WhatsApp for iOS prior to v2.20.90, WhatsApp Business for iOS prior to v2.20.90, and WhatsApp for Portal prior to v173.0.0.29.505 could have allowed arbitrary code execution when parsing the contents of an RTP Extension header.

Frequently asked questions

What is CVE-2020-1907?: A stack overflow in WhatsApp for Android prior to v2.20.196.16, WhatsApp Business for Android prior to v2.20.196.12, WhatsApp for iOS prior to v2.20.90, WhatsApp Business for iOS prior to v2.20.90, and WhatsApp for Portal prior to v173.0.0.29.505 could have allowed arbitrary code execution when parsing the contents of an RTP Extension header.
How severe is CVE-2020-1907?: CVE-2020-1907 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-1907 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-1907?: CVE-2020-1907 primarily affects Whatsapp. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-1907?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-1907 published?: CVE-2020-1907 was published on 2020-10-06 and last updated on 2026-06-17.

References

https://www.whatsapp.com/security/advisories/2020/

Affected products (5)

cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:iphone_os:*:*
cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:android:*:*
cpe:2.3:a:whatsapp:whatsapp:*:*:*:*:*:portal:*:*
cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:iphone_os:*:*
cpe:2.3:a:whatsapp:whatsapp_business:*:*:*:*:*:android:*:*

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CVE-2022-36934 — Critical (CVSS 9.8): An integer overflow in WhatsApp could result in remote code execution in an established video call.
CVE-2021-24042 — Critical (CVSS 9.8): The calling logic for WhatsApp for Android prior to v2.21.23, WhatsApp Business for Android prior to v2.21.23, WhatsApp…
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