Medium severity · published Apr 3, 2025
CVE-2025-31127
Element X Android allows the entity in control of the well-known file to break the confidentiality embedded Element Call
5.3
CVSS
0.2%
EPSS
No
On KEV
Description
Element X Android is a Matrix Android Client provided by element.io. In Element X Android versions between 0.4.16 and 25.03.3, the entity in control of the element.json well-known file is able, under certain conditions, to get access to the media encryption keys used for an Element Call call. This vulnerability is fixed in 25.03.4.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
element-x-android · element-hq
>= 0.4.16, < 25.03.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-31127
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-31127
github.com
https://github.com/element-hq/element-meta/issues/2441
github.com
https://github.com/element-hq/element-x-android/security/advisories/GHSA-x2g5-f28j-p7w6
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