CVE-2021-25487 kev in the critical feed json
Lack of boundary checking of a buffer in set_skb_priv() of modem interface driver prior to SMR Oct-2021 Release 1 allows OOB read and it re…
published 2021-10-06 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-12383
- cvss
- 7.3
- version 3.1, CNA
- cisa kev
- Exploited
- added 2023-06-29
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
Lack of boundary checking of a buffer in set_skb_priv() of modem interface driver prior to SMR Oct-2021 Release 1 allows OOB read and it results in arbitrary code execution by dereference of invalid function pointer.
Patch / fix
cisa required action Apply updates per vendor instructions or discontinue use of the product if updates are unavailable
- Samsung Mobile Samsung Mobile Devices SMR Oct-2021 Release 1
Timeline
- Found exploited as a 0-day (Project Zero)
- 0-day patched (Project Zero)
- Published
- Added to CISA KEV
- CISA patch deadline
- CISA SSVC: exploitation active
Known exploited
- Added
- 3 y ago
- Patch by
- 2023-07-20 (3 y ago)
- Ransomware
- Not known
- Required action
- Apply updates per vendor instructions or discontinue use of the product if updates are unavailable
- Vendor, product
- Samsung, Mobile Devices
- CISA name
- Samsung Mobile Devices Out-of-Bounds Read Vulnerability
Zero-day
Detected in real attacks while still unknown to the vendor and the public, per Google Project Zero's 0day In-the-Wild tracker.
- Found
- 2021-07-26
- Patched
- 2021-10-01
- Details
- project zero tracker
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- no
- Technical impact
- total
- Assessed
- 21 mo ago
Exploit prediction
0.64% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Samsung Mobile Samsung Mobile Devices
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
security.samsungmobile.com
/securityUpdate.smsb?year=2021&month=10
vendor-advisory
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25487
government-resource, us-government-resource
Sources
- CVE List CVE-2021-25487
- NVD CVE-2021-25487
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