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CVE-2026-63900— USB: serial: keyspan: fix missing indat transfer sanity check

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基金会开源的一款操作系统内核。 Linux kernel 2.6.23版本存在安全漏洞，该漏洞源于缺少对USA49WG indat传输大小的验证，可能导致解析陈旧或未初始化的slab数据。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 0ca1268e109acf6d71507398cb95cab2e670b654< bd6c5fe59f374b63173afe5cf0ab38a9a370f2c1 affected
0ca1268e109acf6d71507398cb95cab2e670b654< e124120e89b61a967e40dee6b5e1ecafc45c09d9 affected
0ca1268e109acf6d71507398cb95cab2e670b654< 41d9673941eebdde62ee73848fcfe4ae1105c979 affected
0ca1268e109acf6d71507398cb95cab2e670b654< 0bde5431037a076ff3750da2165fd77a6f5ff058 affected
0ca1268e109acf6d71507398cb95cab2e670b654< 3759a40738b83bb61699c85f063202b514b94f77 affected
0ca1268e109acf6d71507398cb95cab2e670b654< ea2b792330b44b6d7ce671c3e1d59d0c121f7ed1 affected
0ca1268e109acf6d71507398cb95cab2e670b654< f7f566ad7519c7ca3bc9071350002940a2b0e22a affected
0ca1268e109acf6d71507398cb95cab2e670b654< ab8336a7e414f018430aa1af3a46944032f7ff96 affected
… +10 more rows
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I. Basic Information for CVE-2026-63900

Vulnerability Information
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Vulnerability Title
USB: serial: keyspan: fix missing indat transfer sanity check
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: USB: serial: keyspan: fix missing indat transfer sanity check Add the missing sanity check on the size of usa49wg indat transfers to avoid parsing stale or uninitialised slab data.
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基金会开源的一款操作系统内核。 Linux kernel 2.6.23版本存在安全漏洞，该漏洞源于缺少对USA49WG indat传输大小的验证，可能导致解析陈旧或未初始化的slab数据。
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 0ca1268e109acf6d71507398cb95cab2e670b654 ~ bd6c5fe59f374b63173afe5cf0ab38a9a370f2c1 -
Linux Linux 2.6.23 -

II. Public POCs for CVE-2026-63900

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III. Intelligence Information for CVE-2026-63900

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Patches & Fixes for CVE-2026-63900 (7)

Same Patch Batch · Linux · 2026-07-19 · 429 CVEs total

CVE-2026-63795 10.0 CRITICAL 9p: avoid putting oldfid in p9_client_walk() error path
CVE-2026-64056 9.8 CRITICAL net: ethernet: cortina: Make RX SKB per-port
CVE-2026-63886 9.8 CRITICAL scsi: target: iscsi: Validate CHAP_R length before base64 decode
CVE-2026-53399 9.8 CRITICAL nfsd: release layout stid on setlease failure
CVE-2026-53398 9.8 CRITICAL NFSD: Fix SECINFO_NO_NAME decode error cleanup
CVE-2026-63984 9.8 CRITICAL ipv6: rpl: fix hdrlen overflow in ipv6_rpl_srh_decompress()
CVE-2026-63922 9.8 CRITICAL ipv6: exthdrs: refresh nh after handling HAO option
CVE-2026-64035 9.8 CRITICAL igc: set tx buffer type for SMD frames
CVE-2026-64150 9.8 CRITICAL netfilter: nft_inner: release local_lock before re-enabling softirqs
CVE-2026-63924 9.8 CRITICAL ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo()
CVE-2026-63979 9.8 CRITICAL net/handshake: hand off the pinned file reference to accept_doit
CVE-2026-63800 9.8 CRITICAL pNFS: Fix use-after-free in pnfs_update_layout()
CVE-2026-64037 9.8 CRITICAL wifi: iwlwifi: mld: fix TSO segmentation explosion when AMSDU is disabled
CVE-2026-63978 9.8 CRITICAL net/handshake: Drain pending requests at net namespace exit
CVE-2026-64132 9.8 CRITICAL ipv6: ioam: refresh hdr pointer before ioam6_event()
CVE-2026-63825 9.8 CRITICAL gcov: use atomic counter updates to fix concurrent access crashes
CVE-2026-63857 9.8 CRITICAL net: airoha: Do not read uninitialized fragment address in airoha_dev_xmit()
CVE-2026-64113 9.8 CRITICAL ixgbevf: fix use-after-free in VEPA multicast source pruning
CVE-2026-64016 9.8 CRITICAL ksmbd: fix durable reconnect error path file lifetime
CVE-2026-64162 9.8 CRITICAL idpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init()

Showing top 20 of 429 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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