Out-of-bounds Read in Samsung Mobile Devices
CVE-2021-25487
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.
Vulnerability class: Buffer Overflow
EPSS: 0.026 (85.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N.
Affected products
- Samsung Mobile Devices — versions O(8.1), P(9.0), Q(10.0), R(11.0)
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable
Public proof-of-concept exploits
References
- security.samsungmobile.com/securityUpdate.smsb (x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-25487?
- CVE-2021-25487 is a high-severity vulnerability in Samsung Mobile Devices, classified under Out-of-bounds Read. CVSS score: 7.3/10. Published 2021-10-06.
- How severe is CVE-2021-25487?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2021-25487 known to be exploited?
- Yes. CVE-2021-25487 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-06-29), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.