CVE-2025-10158 (GCVE-0-2025-10158)
Vulnerability from cvelistv5 – Published: 2025-11-18 14:24 – Updated: 2025-11-19 16:48
VLAI
EPSS
VEX
Title
Rsync: Out of bounds array access via negative index
Summary
A malicious client acting as the receiver of an rsync file transfer can trigger an out of bounds read of a heap based buffer, via a negative array index. The
malicious
rsync client requires at least read access to the remote rsync module in order to trigger the issue.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-19 16:15 UTC
CWE
- CWE-129 - Improper Validation of Array Index
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/RsyncProject/rsync/commit/797e… | patch |
| https://attackerkb.com/assessments/fbacb2a6-d1cd-… | technical-description |
Impacted products
Date Public
2025-11-18 14:20
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-10158",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-11-19T16:15:02.998218Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-11-19T16:48:56.591Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "rsync",
"vendor": "rsync",
"versions": [
{
"lessThanOrEqual": "3.4.1",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Calum Hutton"
}
],
"datePublic": "2025-11-18T14:20:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "A malicious client acting as the receiver of an rsync file transfer can trigger an out of bounds read of a heap based buffer, via a negative array index. The \n\nmalicious \n\nrsync client requires at least read access to the remote rsync module in order to trigger the issue."
}
],
"value": "A malicious client acting as the receiver of an rsync file transfer can trigger an out of bounds read of a heap based buffer, via a negative array index. The \n\nmalicious \n\nrsync client requires at least read access to the remote rsync module in order to trigger the issue."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-129",
"description": "CWE-129 Improper Validation of Array Index",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-11-18T14:45:58.065Z",
"orgId": "9974b330-7714-4307-a722-5648477acda7",
"shortName": "rapid7"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://github.com/RsyncProject/rsync/commit/797e17fc4a6f15e3b1756538a9f812b63942686f"
},
{
"tags": [
"technical-description"
],
"url": "https://attackerkb.com/assessments/fbacb2a6-d1cd-4011-bb3a-f06b1c8306b1"
}
],
"source": {
"discovery": "UNKNOWN"
},
"timeline": [
{
"lang": "en",
"time": "2025-03-19T06:11:00.000Z",
"value": "Rapid7 makes initial outreach to rsync maintainers"
},
{
"lang": "en",
"time": "2025-03-19T10:04:00.000Z",
"value": "Rsync maintainers confirm outreach"
},
{
"lang": "en",
"time": "2025-03-20T10:34:00.000Z",
"value": "Rapid7 provides rsync maintainers a technical writeup and PoC to reproduce the issue"
},
{
"lang": "en",
"time": "2025-04-02T03:05:00.000Z",
"value": "Rapid7 requests confirmation of findings"
},
{
"lang": "en",
"time": "2025-04-06T09:30:00.000Z",
"value": "Rsync maintainers indicate more time is needed"
},
{
"lang": "en",
"time": "2025-04-16T05:31:00.000Z",
"value": "Rsync maintainers reproduce the issue and dispute its security impact due to uncertainty around viability of heap manipulation during exploitation"
},
{
"lang": "en",
"time": "2025-04-17T01:56:00.000Z",
"value": "Rapid7 indicates manipulating the heap is nuanced and CVE assignment is both prudent and best practice in this instance"
},
{
"lang": "en",
"time": "2025-05-07T09:08:00.000Z",
"value": "Rapid7 requests an update"
},
{
"lang": "en",
"time": "2025-05-12T06:08:00.000Z",
"value": "Rsync maintainers indicate a pull request to fix the issue is forthcoming"
},
{
"lang": "en",
"time": "2025-05-28T09:40:00.000Z",
"value": "Rapid7 requests an update"
},
{
"lang": "en",
"time": "2025-06-17T04:19:00.000Z",
"value": "Rapid7 requests an update"
},
{
"lang": "en",
"time": "2025-08-18T11:59:00.000Z",
"value": "Rapid7 requests an update"
},
{
"lang": "en",
"time": "2025-08-23T09:17:00.000Z",
"value": "Rsync maintainers indicate a pull request to remediate the issue has been made and a feature release is forthcoming"
},
{
"lang": "en",
"time": "2025-09-02T04:23:00.000Z",
"value": "Rapid7 indicates intention to assign a CVE and perform a coordinated disclosure with the rsync maintainers upon the upcoming feature release"
},
{
"lang": "en",
"time": "2025-09-09T11:18:00.000Z",
"value": "Rapid7 provides rsync maintainers a reserved CVE identifier and requests the date for the expected feature release"
},
{
"lang": "en",
"time": "2025-11-11T04:42:00.000Z",
"value": "Rapid7 indicates intention to publish the CVE record on November 18, 2025."
},
{
"lang": "en",
"time": "2025-11-18T14:00:00.000Z",
"value": "This disclosure"
}
],
"title": "Rsync: Out of bounds array access via negative index",
"x_generator": {
"engine": "Vulnogram 0.5.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "9974b330-7714-4307-a722-5648477acda7",
"assignerShortName": "rapid7",
"cveId": "CVE-2025-10158",
"datePublished": "2025-11-18T14:24:19.210Z",
"dateReserved": "2025-09-09T11:15:17.585Z",
"dateUpdated": "2025-11-19T16:48:56.591Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-10158",
"date": "2026-10-01",
"epss": "0.00326",
"percentile": "0.23316"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "rsync",
"vendor": "rsync",
"versions": [
{
"lessThanOrEqual": "3.4.1",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "cve@rapid7.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A malicious client acting as the receiver of an rsync file transfer can trigger an out of bounds read of a heap based buffer, via a negative array index. The \n\nmalicious \n\nrsync client requires at least read access to the remote rsync module in order to trigger the issue."
}
],
"id": "CVE-2025-10158",
"lastModified": "2026-06-17T08:27:47.720",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 1.4,
"source": "cve@rapid7.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-10158",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-11-19T16:15:02.998218Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-11-18T15:16:25.433",
"references": [
{
"source": "cve@rapid7.com",
"url": "https://attackerkb.com/assessments/fbacb2a6-d1cd-4011-bb3a-f06b1c8306b1"
},
{
"source": "cve@rapid7.com",
"url": "https://github.com/RsyncProject/rsync/commit/797e17fc4a6f15e3b1756538a9f812b63942686f"
}
],
"sourceIdentifier": "cve@rapid7.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-129"
}
],
"source": "cve@rapid7.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-07-11T22:58:59+00:00",
"cve": "CVE-2025-10158",
"id": "CVE-2025-10158",
"initial_release_date": "2025-11-18T14:24:19.210000+00:00",
"product_status:fixed": "75",
"product_status:known_affected": "4",
"product_status:known_not_affected": "35",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "rsync: Rsync: Out of bounds array access via negative index",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-10158.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-30T15:37:13Z",
"cve": "CVE-2025-10158",
"id": "CVE-2025-10158",
"initial_release_date": "2025-12-05T00:44:09Z",
"product_status:known_affected": "425",
"product_status:recommended": "43",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2025-10158",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-10158.json",
"version": "34"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-10158",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-11-19T16:15:02.998218Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-11-19T16:15:07.191Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "rsync",
"vendor": "rsync",
"versions": [
{
"lessThanOrEqual": "3.4.1",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Calum Hutton"
}
],
"datePublic": "2025-11-18T14:20:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "A malicious client acting as the receiver of an rsync file transfer can trigger an out of bounds read of a heap based buffer, via a negative array index. The \n\nmalicious \n\nrsync client requires at least read access to the remote rsync module in order to trigger the issue."
}
],
"value": "A malicious client acting as the receiver of an rsync file transfer can trigger an out of bounds read of a heap based buffer, via a negative array index. The \n\nmalicious \n\nrsync client requires at least read access to the remote rsync module in order to trigger the issue."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-129",
"description": "CWE-129 Improper Validation of Array Index",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-11-18T14:45:58.065Z",
"orgId": "9974b330-7714-4307-a722-5648477acda7",
"shortName": "rapid7"
},
"references": [
{
"tags": [
"patch"
],
"url": "https://github.com/RsyncProject/rsync/commit/797e17fc4a6f15e3b1756538a9f812b63942686f"
},
{
"tags": [
"technical-description"
],
"url": "https://attackerkb.com/assessments/fbacb2a6-d1cd-4011-bb3a-f06b1c8306b1"
}
],
"source": {
"discovery": "UNKNOWN"
},
"timeline": [
{
"lang": "en",
"time": "2025-03-19T06:11:00.000Z",
"value": "Rapid7 makes initial outreach to rsync maintainers"
},
{
"lang": "en",
"time": "2025-03-19T10:04:00.000Z",
"value": "Rsync maintainers confirm outreach"
},
{
"lang": "en",
"time": "2025-03-20T10:34:00.000Z",
"value": "Rapid7 provides rsync maintainers a technical writeup and PoC to reproduce the issue"
},
{
"lang": "en",
"time": "2025-04-02T03:05:00.000Z",
"value": "Rapid7 requests confirmation of findings"
},
{
"lang": "en",
"time": "2025-04-06T09:30:00.000Z",
"value": "Rsync maintainers indicate more time is needed"
},
{
"lang": "en",
"time": "2025-04-16T05:31:00.000Z",
"value": "Rsync maintainers reproduce the issue and dispute its security impact due to uncertainty around viability of heap manipulation during exploitation"
},
{
"lang": "en",
"time": "2025-04-17T01:56:00.000Z",
"value": "Rapid7 indicates manipulating the heap is nuanced and CVE assignment is both prudent and best practice in this instance"
},
{
"lang": "en",
"time": "2025-05-07T09:08:00.000Z",
"value": "Rapid7 requests an update"
},
{
"lang": "en",
"time": "2025-05-12T06:08:00.000Z",
"value": "Rsync maintainers indicate a pull request to fix the issue is forthcoming"
},
{
"lang": "en",
"time": "2025-05-28T09:40:00.000Z",
"value": "Rapid7 requests an update"
},
{
"lang": "en",
"time": "2025-06-17T04:19:00.000Z",
"value": "Rapid7 requests an update"
},
{
"lang": "en",
"time": "2025-08-18T11:59:00.000Z",
"value": "Rapid7 requests an update"
},
{
"lang": "en",
"time": "2025-08-23T09:17:00.000Z",
"value": "Rsync maintainers indicate a pull request to remediate the issue has been made and a feature release is forthcoming"
},
{
"lang": "en",
"time": "2025-09-02T04:23:00.000Z",
"value": "Rapid7 indicates intention to assign a CVE and perform a coordinated disclosure with the rsync maintainers upon the upcoming feature release"
},
{
"lang": "en",
"time": "2025-09-09T11:18:00.000Z",
"value": "Rapid7 provides rsync maintainers a reserved CVE identifier and requests the date for the expected feature release"
},
{
"lang": "en",
"time": "2025-11-11T04:42:00.000Z",
"value": "Rapid7 indicates intention to publish the CVE record on November 18, 2025."
},
{
"lang": "en",
"time": "2025-11-18T14:00:00.000Z",
"value": "This disclosure"
}
],
"title": "Rsync: Out of bounds array access via negative index",
"x_generator": {
"engine": "Vulnogram 0.5.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "9974b330-7714-4307-a722-5648477acda7",
"assignerShortName": "rapid7",
"cveId": "CVE-2025-10158",
"datePublished": "2025-11-18T14:24:19.210Z",
"dateReserved": "2025-09-09T11:15:17.585Z",
"dateUpdated": "2025-11-18T14:45:58.065Z",
"state": "PUBLISHED"
},
"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…
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Loading…
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.
Loading…