MEDIUM
CVE-2020-1908
CWE-285Published: November 3, 2020· Updated: Jun 17, 2026
4.6
CVSS v3.1
Official Description
Improper authorization of the Screen Lock feature in WhatsApp and WhatsApp Business for iOS prior to v2.20.100 could have permitted use of Siri to interact with the WhatsApp application even after the phone was locked.
Technical Analysis
CVE-2020-1908 requires local access, meaning attackers must already have a foothold on the target system.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 4.6.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorPhysical
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Vendors & Products
whatsapp2 product(s)
whatsappwhatsapp business
Source: NVD CPE · 2 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (2)
→
https://www.whatsapp.com/security/advisories/2020/Vendor Advisory
→
https://www.whatsapp.com/security/advisories/2020/Vendor Advisory
Quick Facts
CVE IDCVE-2020-1908
CVSS Score4.6 / 10
SeverityMEDIUM
WeaknessCWE-285
CISA KEVNo
Affected1 vendor(s)
PublishedNov 3, 2020
Related CVEs (CWE-285)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-1908 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.