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CVE-2026-23303— smb: client: Don't log plaintext credentials in cifs_set_cifscreds

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于调试日志记录明文凭据，可能导致凭据泄露。

AI Predicted 3.7 Difficulty: Trivial EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 8a8798a5ff90977d6459ce1d657cf8fe13a51e97< e5a3b11e07b335006371915b2da47b6056c9e3bc affected
8a8798a5ff90977d6459ce1d657cf8fe13a51e97< 54c570de9a35860dfa85fe668f23ddfda8cc7e26 affected
8a8798a5ff90977d6459ce1d657cf8fe13a51e97< ff0ece8ed04180c52167c003362284b23cf54e8d affected
8a8798a5ff90977d6459ce1d657cf8fe13a51e97< 3990f352bb0adc8688d0949a9c13e3110570eb61 affected
8a8798a5ff90977d6459ce1d657cf8fe13a51e97< b746a357abfb8fdb0a171d51ec5091e786d34be1 affected
8a8798a5ff90977d6459ce1d657cf8fe13a51e97< 2ef0fc3bf49db2b9df36d5f44508c9e384bfa2a1 affected
8a8798a5ff90977d6459ce1d657cf8fe13a51e97< 3e182701db612ddd794ccd5ed822e6cc1db2b972 affected
8a8798a5ff90977d6459ce1d657cf8fe13a51e97< 2f37dc436d4e61ff7ae0b0353cf91b8c10396e4d affected
… +10 more rows
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I. Basic Information for CVE-2026-23303

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
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Vulnerability Title
smb: client: Don't log plaintext credentials in cifs_set_cifscreds
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: smb: client: Don't log plaintext credentials in cifs_set_cifscreds When debug logging is enabled, cifs_set_cifscreds() logs the key payload and exposes the plaintext username and password. Remove the debug log to avoid exposing credentials.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于调试日志记录明文凭据，可能导致凭据泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 ~ e5a3b11e07b335006371915b2da47b6056c9e3bc -
Linux Linux 3.3 -

II. Public POCs for CVE-2026-23303

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III. Intelligence Information for CVE-2026-23303

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Patches & Fixes for CVE-2026-23303 (6)

Same Patch Batch · Linux · 2026-03-25 · 116 CVEs total

CVE-2026-23395 8.8 HIGH Bluetooth: L2CAP: Fix accepting multiple L2CAP_ECRED_CONN_REQ
CVE-2026-31788 8.2 HIGH xen/privcmd: restrict usage in unprivileged domU
CVE-2026-23280 7.8 HIGH accel/amdxdna: Prevent ubuf size overflow
CVE-2026-23317 7.8 HIGH drm/vmwgfx: Return the correct value in vmw_translate_ptr functions
CVE-2026-23393 7.8 HIGH bridge: cfm: Fix race condition in peer_mep deletion
CVE-2026-23392 7.8 HIGH netfilter: nf_tables: release flowtable after rcu grace period on error
CVE-2026-23391 7.8 HIGH netfilter: xt_CT: drop pending enqueued packets on template removal
CVE-2026-23340 7.8 HIGH net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs
CVE-2026-23372 7.8 HIGH nfc: rawsock: cancel tx_work before socket teardown
CVE-2026-23306 7.8 HIGH scsi: pm8001: Fix use-after-free in pm8001_queue_command()
CVE-2026-23288 7.8 HIGH accel/amdxdna: Fix out-of-bounds memset in command slot handling
CVE-2026-23378 7.8 HIGH net/sched: act_ife: Fix metalist update behavior
CVE-2026-23336 7.8 HIGH wifi: cfg80211: cancel rfkill_block work in wiphy_unregister()
CVE-2026-23351 7.8 HIGH netfilter: nft_set_pipapo: split gc into unlink and reclaim phase
CVE-2026-23383 7.8 HIGH bpf, arm64: Force 8-byte alignment for JIT buffer to prevent atomic tearing
CVE-2026-23350 7.8 HIGH drm/xe/queue: Call fini on exec queue creation fail
CVE-2026-23364 7.4 HIGH ksmbd: Compare MACs in constant time
CVE-2026-23294 7.0 HIGH bpf: Fix race in devmap on PREEMPT_RT
CVE-2026-23358 drm/amdgpu: Fix error handling in slot reset
CVE-2026-23357 can: mcp251x: fix deadlock in error path of mcp251x_open

Showing top 20 of 116 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-23303

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