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CVE-2025-39760— usb: core: config: Prevent OOB read in SS endpoint companion parsing

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SS端点伴侣解析中未优先检查长度，可能导致越界读取。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 842f16905dfc6743c1dd80c3d29b49ba3ab7f7c8< 5c3097ede7835d3caf6543eb70ff689af4550cd2 affected
842f16905dfc6743c1dd80c3d29b49ba3ab7f7c8< 058ad2b722812708fe90567875704ae36563e33b affected
842f16905dfc6743c1dd80c3d29b49ba3ab7f7c8< b10e0f868067c6f25bbfabdcf3e1e6432c24ca55 affected
842f16905dfc6743c1dd80c3d29b49ba3ab7f7c8< 5badd56c711e2c8371d1670f9bd486697575423c affected
842f16905dfc6743c1dd80c3d29b49ba3ab7f7c8< 9512510cee7d1becdb0e9413fdd3ab783e4e30ee affected
842f16905dfc6743c1dd80c3d29b49ba3ab7f7c8< 4fe6f472f0beef4281e6f03bc38a910a33be663f affected
842f16905dfc6743c1dd80c3d29b49ba3ab7f7c8< 9843bcb187cb933861f7805022e6873905f669e4 affected
842f16905dfc6743c1dd80c3d29b49ba3ab7f7c8< cf16f408364efd8a68f39011a3b073c83a03612d affected
… +10 more rows
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I. Basic Information for CVE-2025-39760

Vulnerability Information
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Vulnerability Title
usb: core: config: Prevent OOB read in SS endpoint companion parsing
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: core: config: Prevent OOB read in SS endpoint companion parsing usb_parse_ss_endpoint_companion() checks descriptor type before length, enabling a potentially odd read outside of the buffer size. Fix this up by checking the size first before looking at any of the fields in the descriptor.
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SS端点伴侣解析中未优先检查长度，可能导致越界读取。
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 842f16905dfc6743c1dd80c3d29b49ba3ab7f7c8 ~ 5c3097ede7835d3caf6543eb70ff689af4550cd2 -
Linux Linux 2.6.35 -

II. Public POCs for CVE-2025-39760

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III. Intelligence Information for CVE-2025-39760

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Same Patch Batch · Linux · 2025-09-11 · 54 CVEs total

CVE-2025-39758 9.8 CRITICAL RDMA/siw: Fix the sendmsg byte count in siw_tcp_sendpages
CVE-2025-39761 8.8 HIGH wifi: ath12k: Decrement TID on RX peer frag setup error handling
CVE-2025-39750 8.8 HIGH wifi: ath12k: Correct tid cleanup when tid setup fails
CVE-2025-39790 8.4 HIGH bus: mhi: host: Detect events pointing to unexpected TREs
CVE-2025-39779 7.8 HIGH btrfs: subpage: keep TOWRITE tag until folio is cleaned
CVE-2025-39785 7.8 HIGH drm/hisilicon/hibmc: fix irq_request()'s irq name variable is local
CVE-2025-39786 7.8 HIGH iio: adc: ad7173: fix channels index for syscalib_mode
CVE-2025-39787 7.8 HIGH soc: qcom: mdt_loader: Ensure we don't read past the ELF header
CVE-2025-39740 7.8 HIGH drm/xe/migrate: prevent potential UAF
CVE-2025-39780 7.8 HIGH sched/ext: Fix invalid task state transitions on class switch
CVE-2025-39791 7.8 HIGH dm: dm-crypt: Do not partially accept write BIOs with zoned targets
CVE-2025-39770 7.5 HIGH net: gso: Forbid IPv6 TSO with extensions on devices with only IPV6_CSUM
CVE-2025-39738 7.3 HIGH btrfs: do not allow relocation of partially dropped subvolumes
CVE-2025-39789 7.3 HIGH crypto: x86/aegis - Add missing error checks
CVE-2025-39776 7.0 HIGH mm/debug_vm_pgtable: clear page table entries at destroy_args()
CVE-2025-39784 PCI: Fix link speed calculation on retrain failure
CVE-2025-39782 jbd2: prevent softlockup in jbd2_log_do_checkpoint()
CVE-2025-39772 drm/hisilicon/hibmc: fix the hibmc loaded failed bug
CVE-2025-39771 regulator: pca9450: Use devm_register_sys_off_handler
CVE-2025-39783 PCI: endpoint: Fix configfs group list head handling

Showing top 20 of 54 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-39760

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