CVE-2026-98025 (GCVE-0-2026-98025)
Vulnerability from cvelistv5 – Published: 2026-09-25 10:23 – Updated: 2026-10-19 09:12| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808 , < d0c1ce6ef4cefe568e19afa83f543caa3c3c0873
(git)
Affected: ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808 , < 0dbc89e664b4609ad672b5bdeef60df251294b8f (git) Affected: ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808 , < 00520cdd21ea6a9b5dc8d53bbd241620d2059554 (git) Affected: ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808 , < 59bf9e94bdc49557f07d87164269daff7340f4d6 (git) Affected: ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808 , < 3bd689409bb1c93bdc6dd8ec6cbf5161bc4f0287 (git) Affected: ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808 , < 659654654eb140851467af41d610473c100c7975 (git) Affected: ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808 , < 237c9ae7145772af147e4665f158938350fa5658 (git) Affected: ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808 , < 5d50e90add8b4a978395e893e81954d19d58a7c5 (git) Affected: 5adf7fbdfa3e9e425b04771e1d64c4e184ad8fdb (git) Affected: c1b187a86a176e42f5e48066556980e3232b6cab (git) Affected: 4.19.322 , < 4.20 (semver) Affected: 5.4.284 , < 5.5 (semver) |
guessed | |
| Linux | Linux |
Affected:
5.10
Unaffected: 0 , < 5.10 (semver) Unaffected: 5.10.271 , ≤ 5.10.* (semver) Unaffected: 5.15.222 , ≤ 5.15.* (semver) Unaffected: 6.1.189 , ≤ 6.1.* (semver) Unaffected: 6.6.158 , ≤ 6.6.* (semver) Unaffected: 6.12.111 , ≤ 6.12.* (semver) Unaffected: 6.18.53 , ≤ 6.18.* (semver) Unaffected: 7.2.7 , ≤ 7.2.* (semver) Unaffected: 7.3 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/usb/cx82310_eth.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"status": "affected",
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"versionType": "git"
},
{
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},
{
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"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
},
{
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"status": "affected",
"version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
"versionType": "git"
},
{
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"versionType": "git"
},
{
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"version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
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},
{
"status": "affected",
"version": "5adf7fbdfa3e9e425b04771e1d64c4e184ad8fdb",
"versionType": "git"
},
{
"status": "affected",
"version": "c1b187a86a176e42f5e48066556980e3232b6cab",
"versionType": "git"
},
{
"lessThan": "4.20",
"status": "affected",
"version": "4.19.322",
"versionType": "semver"
},
{
"lessThan": "5.5",
"status": "affected",
"version": "5.4.284",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/usb/cx82310_eth.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.10"
},
{
"lessThan": "5.10",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.271",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.222",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.189",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.158",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.111",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.53",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.2.7",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.3",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.19.322",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.4.284",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: cx82310_eth: drop URB after 0xffff reboot sentinel to prevent partial_data heap overflow\n\nThe 0xffff length sentinel detects a router reboot and schedules\nre-enabling of ethernet mode, but then falls through to the rest\nof the loop body. The next check is\n\n\t} else if (len \u003e CX82310_MTU) {\n\nwhich is the else of the just-matched if -- it never fires for\nlen == 0xffff. The MTU bound that normally caps the\nincomplete-packet save path is silently bypassed.\n\nWith 0xffff \u003e skb-\u003elen always true (rx_urb_size is 4096), the\nincomplete-packet branch saves dev-\u003epartial_len = skb-\u003elen bytes\ninto dev-\u003epartial_data. partial_data is kmalloc(hard_mtu) =\nkmalloc(CX82310_MTU + 2) = 1516 bytes, but skb-\u003elen after the\n2-byte header pull can be up to 4094. A device that sends a\n4096-byte URB starting with [0xff 0xff] therefore copies 4094\ndevice-provided bytes into a buffer allocated for 1516 bytes,\nexceeding its requested size by 2578 bytes.\n\nThe next URB then reads dev-\u003epartial_len (4094) back from the same\n1516-byte buffer and dev-\u003epartial_rem (65535 - 4094 = 61441) from\nthe new URB\u0027s ~4KB skb, both well past their allocations, and\ndelivers the spliced result as a 64KB \"frame\" to the network\nstack.\n\nBail out of rx_fixup after scheduling the re-enable work; the\nremainder of a reboot-marker URB is not meaningful packet data.\nThis restores the invariant that partial_len \u003c CX82310_MTU + 2 on\nthe save path, since every other route there has already passed\nthe MTU check."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-19T09:12:30.354Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/d0c1ce6ef4cefe568e19afa83f543caa3c3c0873"
},
{
"url": "https://git.kernel.org/stable/c/0dbc89e664b4609ad672b5bdeef60df251294b8f"
},
{
"url": "https://git.kernel.org/stable/c/00520cdd21ea6a9b5dc8d53bbd241620d2059554"
},
{
"url": "https://git.kernel.org/stable/c/59bf9e94bdc49557f07d87164269daff7340f4d6"
},
{
"url": "https://git.kernel.org/stable/c/3bd689409bb1c93bdc6dd8ec6cbf5161bc4f0287"
},
{
"url": "https://git.kernel.org/stable/c/659654654eb140851467af41d610473c100c7975"
},
{
"url": "https://git.kernel.org/stable/c/237c9ae7145772af147e4665f158938350fa5658"
},
{
"url": "https://git.kernel.org/stable/c/5d50e90add8b4a978395e893e81954d19d58a7c5"
}
],
"title": "net: usb: cx82310_eth: drop URB after 0xffff reboot sentinel to prevent partial_data heap overflow",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-98025",
"datePublished": "2026-09-25T10:23:43.906Z",
"dateReserved": "2026-09-25T10:19:56.070Z",
"dateUpdated": "2026-10-19T09:12:30.354Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-98025",
"date": "2026-11-14",
"epss": "0.00237",
"percentile": "0.14847"
},
"microsoft_vex": {
"current_release_date": "2026-10-21T18:41:19.000Z",
"cve": "CVE-2026-98025",
"id": "msrc_CVE-2026-98025",
"initial_release_date": "2026-09-27T23:27:57.000Z",
"product_status:fixed": "1",
"product_status:known_affected": "1",
"product_status:under_investigation": "1",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "net: usb: cx82310_eth: drop URB after 0xffff reboot sentinel to prevent partial_data heap overflow",
"url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-98025.json",
"version": "4"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/usb/cx82310_eth.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "d0c1ce6ef4cefe568e19afa83f543caa3c3c0873",
"status": "affected",
"version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
"versionType": "git"
},
{
"lessThan": "0dbc89e664b4609ad672b5bdeef60df251294b8f",
"status": "affected",
"version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
"versionType": "git"
},
{
"lessThan": "00520cdd21ea6a9b5dc8d53bbd241620d2059554",
"status": "affected",
"version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
"versionType": "git"
},
{
"lessThan": "59bf9e94bdc49557f07d87164269daff7340f4d6",
"status": "affected",
"version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
"versionType": "git"
},
{
"lessThan": "3bd689409bb1c93bdc6dd8ec6cbf5161bc4f0287",
"status": "affected",
"version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
"versionType": "git"
},
{
"lessThan": "659654654eb140851467af41d610473c100c7975",
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"versionType": "git"
},
{
"lessThan": "237c9ae7145772af147e4665f158938350fa5658",
"status": "affected",
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"versionType": "git"
},
{
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"status": "affected",
"version": "ca139d76b0d9e59d18f2d2ec8f0d81b82acd6808",
"versionType": "git"
},
{
"status": "affected",
"version": "5adf7fbdfa3e9e425b04771e1d64c4e184ad8fdb",
"versionType": "git"
},
{
"status": "affected",
"version": "c1b187a86a176e42f5e48066556980e3232b6cab",
"versionType": "git"
},
{
"lessThan": "4.20",
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"version": "4.19.322",
"versionType": "semver"
},
{
"lessThan": "5.5",
"status": "affected",
"version": "5.4.284",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/usb/cx82310_eth.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.10"
},
{
"lessThan": "5.10",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: cx82310_eth: drop URB after 0xffff reboot sentinel to prevent partial_data heap overflow\n\nThe 0xffff length sentinel detects a router reboot and schedules\nre-enabling of ethernet mode, but then falls through to the rest\nof the loop body. The next check is\n\n\t} else if (len \u003e CX82310_MTU) {\n\nwhich is the else of the just-matched if -- it never fires for\nlen == 0xffff. The MTU bound that normally caps the\nincomplete-packet save path is silently bypassed.\n\nWith 0xffff \u003e skb-\u003elen always true (rx_urb_size is 4096), the\nincomplete-packet branch saves dev-\u003epartial_len = skb-\u003elen bytes\ninto dev-\u003epartial_data. partial_data is kmalloc(hard_mtu) =\nkmalloc(CX82310_MTU + 2) = 1516 bytes, but skb-\u003elen after the\n2-byte header pull can be up to 4094. A device that sends a\n4096-byte URB starting with [0xff 0xff] therefore copies 4094\ndevice-provided bytes into a buffer allocated for 1516 bytes,\nexceeding its requested size by 2578 bytes.\n\nThe next URB then reads dev-\u003epartial_len (4094) back from the same\n1516-byte buffer and dev-\u003epartial_rem (65535 - 4094 = 61441) from\nthe new URB\u0027s ~4KB skb, both well past their allocations, and\ndelivers the spliced result as a 64KB \"frame\" to the network\nstack.\n\nBail out of rx_fixup after scheduling the re-enable work; the\nremainder of a reboot-marker URB is not meaningful packet data.\nThis restores the invariant that partial_len \u003c CX82310_MTU + 2 on\nthe save path, since every other route there has already passed\nthe MTU check."
}
],
"id": "CVE-2026-98025",
"lastModified": "2026-10-19T10:17:56.440",
"metrics": {},
"published": "2026-09-25T11:17:31.110",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/00520cdd21ea6a9b5dc8d53bbd241620d2059554"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/0dbc89e664b4609ad672b5bdeef60df251294b8f"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/237c9ae7145772af147e4665f158938350fa5658"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/3bd689409bb1c93bdc6dd8ec6cbf5161bc4f0287"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/59bf9e94bdc49557f07d87164269daff7340f4d6"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/5d50e90add8b4a978395e893e81954d19d58a7c5"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/659654654eb140851467af41d610473c100c7975"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/d0c1ce6ef4cefe568e19afa83f543caa3c3c0873"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-11-06T02:43:11+00:00",
"cve": "CVE-2026-98025",
"id": "CVE-2026-98025",
"initial_release_date": "2026-09-25T00:00:00+00:00",
"product_status:known_affected": "161",
"product_status:known_not_affected": "42",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: net: usb: cx82310_eth: drop URB after 0xffff reboot sentinel to prevent partial_data heap overflow",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98025.json",
"version": "3"
}
}
}
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.