CVE-2026-18278 (GCVE-0-2026-18278)
Vulnerability from cvelistv5 – Published: 2026-08-20 16:18 – Updated: 2026-08-21 20:08
VLAI
EPSS
VEX
Title
Sony XAV-9500ES prh_l2_decode_packet Out-Of-Bounds Read Information Disclosure Vulnerability
Summary
Sony XAV-9500ES prh_l2_decode_packet Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Sony XAV-9500ES devices. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability.
The specific flaw exists within the handling of Bluetooth L2CAP packets. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the device. Was ZDI-CAN-28990.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 19:55 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
| https://www.sony.com/electronics/support/mobile-c… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Sony | XAV-9500ES |
Affected:
3.02.0.0
|
guessed |
Date Public
2026-07-29 21:41
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-18278",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-21T19:55:16.347315Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-21T20:08:41.900Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "XAV-9500ES",
"vendor": "Sony",
"versions": [
{
"status": "affected",
"version": "3.02.0.0"
}
]
}
],
"dateAssigned": "2026-07-29T17:05:47.725Z",
"datePublic": "2026-07-29T21:41:46.485Z",
"descriptions": [
{
"lang": "en",
"value": "Sony XAV-9500ES prh_l2_decode_packet Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Sony XAV-9500ES devices. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability.\n\nThe specific flaw exists within the handling of Bluetooth L2CAP packets. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the device. Was ZDI-CAN-28990."
}
],
"metrics": [
{
"cvssV3_0": {
"baseScore": 3.5,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
"version": "3.0"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-125",
"description": "CWE-125: Out-of-bounds Read",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-20T16:18:52.440Z",
"orgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
"shortName": "zdi"
},
"references": [
{
"name": "ZDI-26-471",
"tags": [
"x_research-advisory"
],
"url": "https://www.zerodayinitiative.com/advisories/ZDI-26-471/"
},
{
"name": "vendor-provided URL",
"tags": [
"vendor-advisory"
],
"url": "https://www.sony.com/electronics/support/mobile-cd-players-digital-media-players-xav-series/xav-9500es/software/00274922"
}
],
"source": {
"lang": "en",
"value": "@ExLuck99 and @gr4ss341 of ANHTUD"
},
"title": "Sony XAV-9500ES prh_l2_decode_packet Out-Of-Bounds Read Information Disclosure Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "99f1926a-a320-47d8-bbb5-42feb611262e",
"assignerShortName": "zdi",
"cveId": "CVE-2026-18278",
"datePublished": "2026-08-20T16:18:52.440Z",
"dateReserved": "2026-07-29T17:05:47.697Z",
"dateUpdated": "2026-08-21T20:08:41.900Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-18278",
"date": "2026-08-29",
"epss": "0.00166",
"percentile": "0.06078"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-18278\",\"sourceIdentifier\":\"zdi-disclosures@trendmicro.com\",\"published\":\"2026-08-20T17:17:24.123\",\"lastModified\":\"2026-08-21T21:16:54.640\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Sony XAV-9500ES prh_l2_decode_packet Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Sony XAV-9500ES devices. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability.\\n\\nThe specific flaw exists within the handling of Bluetooth L2CAP packets. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the device. Was ZDI-CAN-28990.\"}],\"affected\":[{\"source\":\"zdi-disclosures@trendmicro.com\",\"affectedData\":[{\"vendor\":\"Sony\",\"product\":\"XAV-9500ES\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"3.02.0.0\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"zdi-disclosures@trendmicro.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N\",\"baseScore\":3.5,\"baseSeverity\":\"LOW\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.1,\"impactScore\":1.4}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-08-21T19:55:16.347315Z\",\"id\":\"CVE-2026-18278\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"zdi-disclosures@trendmicro.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"references\":[{\"url\":\"https://www.sony.com/electronics/support/mobile-cd-players-digital-media-players-xav-series/xav-9500es/software/00274922\",\"source\":\"zdi-disclosures@trendmicro.com\"},{\"url\":\"https://www.zerodayinitiative.com/advisories/ZDI-26-471/\",\"source\":\"zdi-disclosures@trendmicro.com\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-18278\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-21T19:55:16.347315Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-21T20:07:21.729Z\"}}], \"cna\": {\"title\": \"Sony XAV-9500ES prh_l2_decode_packet Out-Of-Bounds Read Information Disclosure Vulnerability\", \"source\": {\"lang\": \"en\", \"value\": \"@ExLuck99 and @gr4ss341 of ANHTUD\"}, \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_0\": {\"version\": \"3.0\", \"baseScore\": 3.5, \"baseSeverity\": \"LOW\", \"vectorString\": \"CVSS:3.0/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N\"}}], \"affected\": [{\"vendor\": \"Sony\", \"product\": \"XAV-9500ES\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.02.0.0\"}], \"defaultStatus\": \"unknown\"}], \"datePublic\": \"2026-07-29T21:41:46.485Z\", \"references\": [{\"url\": \"https://www.zerodayinitiative.com/advisories/ZDI-26-471/\", \"name\": \"ZDI-26-471\", \"tags\": [\"x_research-advisory\"]}, {\"url\": \"https://www.sony.com/electronics/support/mobile-cd-players-digital-media-players-xav-series/xav-9500es/software/00274922\", \"name\": \"vendor-provided URL\", \"tags\": [\"vendor-advisory\"]}], \"dateAssigned\": \"2026-07-29T17:05:47.725Z\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"Sony XAV-9500ES prh_l2_decode_packet Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Sony XAV-9500ES devices. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability.\\n\\nThe specific flaw exists within the handling of Bluetooth L2CAP packets. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the device. Was ZDI-CAN-28990.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-125\", \"description\": \"CWE-125: Out-of-bounds Read\"}]}], \"providerMetadata\": {\"orgId\": \"99f1926a-a320-47d8-bbb5-42feb611262e\", \"shortName\": \"zdi\", \"dateUpdated\": \"2026-08-20T16:18:52.440Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-18278\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-21T20:08:41.900Z\", \"dateReserved\": \"2026-07-29T17:05:47.697Z\", \"assignerOrgId\": \"99f1926a-a320-47d8-bbb5-42feb611262e\", \"datePublished\": \"2026-08-20T16:18:52.440Z\", \"assignerShortName\": \"zdi\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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.
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.
Loading…
Loading…