What is CVE-2024-49568?

CVE-2024-49568 is a critical-severity vulnerability in Linux. CVSS score: 9.8/10. Published 2025-01-11.

How severe is CVE-2024-49568?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2024-49568 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Linux

CVE-2024-49568

In the Linux kernel, the following vulnerability has been resolved: net/smc: check v2_ext_offset/eid_cnt/ism_gid_cnt when receiving proposal msg When receiving proposal msg in server, the fields v2_ext_offset/ eid_cnt/ism_gid_cnt in proposal msg are from the remote client and can not be fully trusted. Especially the field v2_ext_offset, once exceed the max value, there has the chance to access wrong address, and crash may happen. This patch checks the fields v2_ext_offset/eid_cnt/ism_gid_cnt before using them.

Published 2025-01-11 · last modified 2026-10-03.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (42.7th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

Linux — versions 8c3dca341aea885249e08856c4380300b75d2cf5, 5.10, 0
Linux Kernel — versions 6.13

Public proof-of-concept exploits

oogasawa/Utility-security

References

Frequently asked questions

What is CVE-2024-49568?: CVE-2024-49568 is a critical-severity vulnerability in Linux. CVSS score: 9.8/10. Published 2025-01-11.
How severe is CVE-2024-49568?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2024-49568 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.