Linux Kernel CVE Statistics

39 Linux Kernel CVEs in July 2023

Full month · Source: NIST NVD

June 2023 August 2023

In July 2023, 39 Linux kernel CVEs were published, sourced from the NIST National Vulnerability Database. Of these, 7 were rated Critical, 19 were rated High severity and 13 Medium. No CVEs from this month have been confirmed as actively exploited via the CISA KEV catalog. July's 39 CVEs represent 13% of all 2023 Linux kernel CVEs , up from June's 31 (a 26% month-over-month increase) .

39
Total CVEs
7
Critical
19
High
13
Medium
0
Low
0
KEV Exploited
All CVEs — July 2023 39 CVEs
All (39) Critical (7) High (19) Medium (13) Low (0)
CVE ID Package Severity CVSS Published Description
CVE-2023-38427 linux Critical 9.8 2023-07-18 An issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/smb2pdu.c in ksmbd has an integer underflow and…
CVE-2023-38429 linux Critical 9.8 2023-07-18 An issue was discovered in the Linux kernel before 6.3.4. fs/ksmbd/connection.c in ksmbd has an off-by-one error in mem…
CVE-2023-38426 linux Critical 9.1 2023-07-18 An issue was discovered in the Linux kernel before 6.3.4. ksmbd has an out-of-bounds read in smb2_find_context_vals whe…
CVE-2023-38432 linux Critical 9.1 2023-07-18 An issue was discovered in the Linux kernel before 6.3.10. fs/smb/server/smb2misc.c in ksmbd does not validate the rela…
CVE-2023-38428 linux Critical 9.1 2023-07-18 An issue was discovered in the Linux kernel before 6.3.4. fs/ksmbd/smb2pdu.c in ksmbd does not properly check the UserN…
CVE-2023-38431 linux Critical 9.1 2023-07-18 An issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/connection.c in ksmbd does not validate the rel…
CVE-2023-38430 linux Critical 9.1 2023-07-18 An issue was discovered in the Linux kernel before 6.3.9. ksmbd does not validate the SMB request protocol ID, leading …
CVE-2023-32257 linux High 8.1 2023-07-24 A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within …
CVE-2023-32258 linux High 8.1 2023-07-24 A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within …
CVE-2023-32254 linux High 8.1 2023-07-10 A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within …
CVE-2023-32250 linux High 8.1 2023-07-10 A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within …
CVE-2023-4004 linux High 7.8 2023-07-31 A use-after-free flaw was found in the Linux kernel's netfilter in the way a user triggers the nft_pipapo_remove functi…
CVE-2023-3812 linux High 7.8 2023-07-24 An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user g…
CVE-2023-3640 linux High 7.8 2023-07-24 A possible unauthorized memory access flaw was found in the Linux kernel's cpu_entry_area mapping of X86 CPU data to me…
CVE-2023-3609 linux High 7.8 2023-07-21 A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local pri…

Frequently Asked Questions

How many Linux kernel CVEs were published in July 2023?

39 Linux kernel CVEs were published in July 2023, sourced from the NIST National Vulnerability Database. Of these, 7 were rated Critical severity, 19 High, and 13 Medium.

How does July 2023 compare to other months?

July 2023's 39 CVEs represent 13% of all 2023 Linux kernel CVEs. Compared to June's 31 CVEs, this was a 26% increase month-over-month. View the full 2023 breakdown →

June 2023 2023 statistics August 2023