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CVE-2021-25487

HIGHCVSS 7.8/10Actively ExploitedEPSS 0.62%

Last modified

CVE-2021-25487 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 0.62% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
7.8/10

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

EPSS Probability
0.62%

45.1th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
SamsungAndroid8.1—
SamsungAndroid9.0Smr-Apr-2021-R1
SamsungAndroid10.0Smr-Apr-2021-R1
SamsungAndroid11.0Smr-Apr-2021-R1

References

Timeline

Published
Last Modified
Status
Analyzed

Frequently Asked Questions

What is 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.
How severe is CVE-2021-25487?
CVE-2021-25487 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.62% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2021-25487?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-25487?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST