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CVE-2025-39757— ALSA: usb-audio: Validate UAC3 cluster segment descriptors

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，该漏洞源于未验证UAC3类段描述符大小，可能导致越界访问。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 11785ef53228d23ec386f5fe4a34601536f0c891< 799c06ad4c9c790c265e8b6b94947213f1fb389c affected
11785ef53228d23ec386f5fe4a34601536f0c891< 786571b10b1ae6d90e1242848ce78ee7e1d493c4 affected
11785ef53228d23ec386f5fe4a34601536f0c891< 275e37532e8ebe25e8a4069b2d9f955bfd202a46 affected
11785ef53228d23ec386f5fe4a34601536f0c891< 47ab3d820cb0a502bd0074f83bb3cf7ab5d79902 affected
11785ef53228d23ec386f5fe4a34601536f0c891< 1034719fdefd26caeec0a44a868bb5a412c2c1a5 affected
11785ef53228d23ec386f5fe4a34601536f0c891< ae17b3b5e753efc239421d186cd1ff06e5ac296e affected
11785ef53228d23ec386f5fe4a34601536f0c891< dfdcbcde5c20df878178245d4449feada7d5b201 affected
11785ef53228d23ec386f5fe4a34601536f0c891< 7ef3fd250f84494fb2f7871f357808edaa1fc6ce affected
… +12 more rows
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I. Basic Information for CVE-2025-39757

Vulnerability Information
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Vulnerability Title
ALSA: usb-audio: Validate UAC3 cluster segment descriptors
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Validate UAC3 cluster segment descriptors UAC3 class segment descriptors need to be verified whether their sizes match with the declared lengths and whether they fit with the allocated buffer sizes, too. Otherwise malicious firmware may lead to the unexpected OOB accesses.
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，该漏洞源于未验证UAC3类段描述符大小，可能导致越界访问。
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 11785ef53228d23ec386f5fe4a34601536f0c891 ~ 799c06ad4c9c790c265e8b6b94947213f1fb389c -
Linux Linux 4.19 -

II. Public POCs for CVE-2025-39757

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III. Intelligence Information for CVE-2025-39757

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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-2025-39773 net: bridge: fix soft lockup in br_multicast_query_expired()

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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