ksmbd: validate mech token in session setup
Priority HIGH 71CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate mech token in session setup If client send invalid mech token in session setup request, ksmbd validate and make the error if it is invalid.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.51248 98th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.15.149, 6.1.75, 6.6.14 +2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.15 and later | 5.15.149, 6.1.75, 6.6.14, 6.7.2, 6.8 | Patch available | CNA |
- Linux VendorLinux Affected 5.15 and later Fixed in 5.15.149, 6.1.75, 6.6.14, 6.7.2, 6.8 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 5.15.149; 5.16.0 to before 6.1.75; 6.2.0 to before 6.6.14; 6.7.0 to before 6.7.2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 5.15.149; 5.16.0 to before 6.1.75; 6.2.0 to before 6.6.14; 6.7.0 to before 6.7.2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.149, 6.1.75, 6.6.14, 6.7.2, 6.8
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2024-26594
- 2026-10-03 Alias added: GHSA-pwm2-gm2p-7637
References
Patch 5
- https://git.kernel.org/stable/c/dd1de9268745f0eac83a430db7afc32cbd62e84b
- https://git.kernel.org/stable/c/6eb8015492bcc84e40646390e50a862b2c0529c9
- https://git.kernel.org/stable/c/a2b21ef1ea4cf632d19b3a7cc4d4245b8e63202a
- https://git.kernel.org/stable/c/5e6dfec95833edc54c48605a98365a7325e5541e
- https://git.kernel.org/stable/c/92e470163d96df8db6c4fa0f484e4a229edb903d
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2024-26594 · CVE Program
- CVE-2024-26594 · NVD
- FIRST EPSS
- GHSA-pwm2-gm2p-7637 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-26594 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences