CVE-2025-21042

criticalpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.356 · 98 %ileexploit · PoCDEEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 1 exploit · PoC

Likely / severe?

35.6% (98th) EPSS

CVSS 9.8 · critical

Is it mine?

15 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

added 2025-11-10remediate by 2025-12-01

required action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

EPSS · scored 2026-10-24

Samsung Mobile Devices Out-of-Bounds Write Vulnerability

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

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.8–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · mobile.security@samsung.comexploitability 2.8 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-787US

exploits (1)

Public proof-of-concept and weaponised exploit code.

patricnilackshan/Samsung-CVE-2025-21042CVE-2025-21042PoC · poc_in_github

affected products (15)

Products and version ranges known to be affected.

Samsung Android 13 <SMR Apr-2025all versionscert_bundDE
Samsung Android 14 <SMR Apr-2025all versionscert_bundDE
Samsung Android 15 <SMR Apr-2025all versionscert_bundDE
Samsung Android Watch 14 <SMR Apr-2025all versionscert_bundDE
Samsung Android≤ Watch 14 <SMR Apr-2025cert_bundDE
Samsung Android≤ 13 <SMR Apr-2025cert_bundDE
Samsung Android≤ 14 <SMR Apr-2025cert_bundDE
Samsung Android≤ 15 <SMR Apr-2025cert_bundDE
Samsung Mobile Samsung Mobile Devices< SMR Apr-2025 Release in Android 13, 14, 15enisa_euvdEU
Google Inc Android≤ 15fstec_bduRU
Google Inc Android≤ 14fstec_bduRU
Google Inc Android≤ 13fstec_bduRU
samsung android= 13.0nvdUScpe:2.3:o:samsung:android:*:*:*:*:*:*:*:*
samsung android= 14.0nvdUScpe:2.3:o:samsung:android:*:*:*:*:*:*:*:*
samsung android= 15.0nvdUScpe:2.3:o:samsung:android:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-0726Samsung Android: Mehrere SchwachstellenDeutsch2025-04-07csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Samsung Android ausnutzen, um seine Privilegien zu erhöhen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, vertrauliche Informationen preiszugeben, beliebigen Code auszuführen oder einen Denial-of-Service-Zustand zu verursachen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2025-09-12modified 2026-06-17

related (16,035)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-86950US	—OT critical	1.24% (69th)	KEV	2026-09-28
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7.1 and iPadOS 26.7.1, macOS Sequoia 15.8.1, macOS Tahoe 26.7.1. Processing…
CVE-2026-87491US	—OT critical	3.14% (88th)	KEV	2026-09-09
Out of bounds write in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security…
CVE-2026-53362US	—OT critical	0.71% (53rd)	KEV	2026-07-04
In the Linux kernel, the following vulnerability has been resolved: ipv6: account for fraggap on the paged allocation path In __ip6_append_data(), when the paged-allocation branc…
CVE-2026-53266US	—OT critical	0.83% (57th)	KEV	2026-06-25
In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: make ebt_snat ARP rewrite writable The ebtables SNAT target keeps the Ethernet source addre…
CVE-2026-11645US	—OT critical	2.44% (84th)	KEV	2026-06-09
Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium…

+16030 more

references (6)

External citations — patches, advisories, analysis.

https://access.redhat.com/security/cve/cve-2025-21042 cnnvd
https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04 cnnvd
https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04 enisa_euvd
https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04Vendor Advisorynvd
https://unit42.paloaltonetworks.com/landfall-is-new-commercial-grade-android-spyware/Technical DescriptionThird Party Advisorynvd
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21042US Government Resourcenvd

scry

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