CVE-2025-21042

critical

Description

Out-of-bounds write in libimagecodec.quram.so prior to SMR Apr-2025 Release 1 allows remote attackers to execute arbitrary code.

References

https://unit42.paloaltonetworks.com/landfall-is-new-commercial-grade-android-spyware/

https://www.malwarebytes.com/blog/news/2025/11/patch-now-samsung-zero-day-lets-attackers-take-over-your-phone

https://www.infosecurity-magazine.com/news/cisa-zeroday-bugspyware-attacks-kev/

https://www.helpnetsecurity.com/2025/11/11/samsung-spyware-cve-2025-21042/

https://securityaffairs.com/184452/hacking/u-s-cisa-adds-samsung-mobile-devices-flaw-to-its-known-exploited-vulnerabilities-catalog.html

https://www.cisa.gov/news-events/alerts/2025/11/10/cisa-adds-one-known-exploited-vulnerability-catalog

https://www.bleepingcomputer.com/news/security/cisa-orders-feds-to-patch-samsung-zero-day-used-in-spyware-attacks/

https://hackread.com/landfall-spyware-samsung-galaxy-malicious-images/

https://www.theregister.com/2025/11/07/landfall_spyware_samsung_0days/

https://www.securityweek.com/landfall-android-spyware-targeted-samsung-phones-via-zero-day/

https://www.databreachtoday.com/samsung-zero-day-flaw-exploited-by-landfall-spyware-a-29963

https://www.darkreading.com/mobile-security/landfall-malware-targeted-samsung-galaxy-users

https://www.bleepingcomputer.com/news/security/new-landfall-spyware-exploited-samsung-zero-day-via-whatsapp-messages/

https://therecord.media/landfall-spyware-middle-east-appears-commercial-grade

https://thehackernews.com/2025/11/samsung-zero-click-flaw-exploited-to.html

https://securityaffairs.com/184331/security/landfall-spyware-exploited-samsung-zero-day-cve-2025-21042-in-middle-east-attacks.html

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21042

https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04

Details

Source: Mitre, NVD

Published: 2025-09-12

Updated: 2025-11-12

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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