CVE-2026-44050 (GCVE-0-2026-44050)
Vulnerability from cvelistv5 – Published: 2026-05-21 07:34 – Updated: 2026-05-22 03:56
VLAI
Title
Heap buffer overflow in CNID daemon comm_rcv()
Summary
A heap-based buffer overflow in the CNID daemon comm_rcv() function in Netatalk 2.0.0 through 4.4.2 allows a remote authenticated attacker to execute arbitrary code with escalated privileges or cause a denial of service.
Severity
9.9 (Critical)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://netatalk.io/security/CVE-2026-44050 | vendor-advisory |
Impacted products
Date Public
2026-05-13 00:00
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-44050",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-21T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-22T03:56:03.551Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Netatalk",
"vendor": "Netatalk",
"versions": [
{
"lessThanOrEqual": "4.4.2",
"status": "affected",
"version": "2.0.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.4.3",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Arjun Basnet from Securin"
}
],
"datePublic": "2026-05-13T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A heap-based buffer overflow in the CNID daemon comm_rcv() function in Netatalk 2.0.0 through 4.4.2 allows a remote authenticated attacker to execute arbitrary code with escalated privileges or cause a denial of service."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.9,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-122",
"description": "Heap-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-21T07:52:13.123Z",
"orgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
"shortName": "securin"
},
"references": [
{
"name": "Netatalk Security Advisory CVE-2026-44050",
"tags": [
"vendor-advisory"
],
"url": "https://netatalk.io/security/CVE-2026-44050"
}
],
"title": "Heap buffer overflow in CNID daemon comm_rcv()"
}
},
"cveMetadata": {
"assignerOrgId": "33c584b5-0579-4c06-b2a0-8d8329fcab9c",
"assignerShortName": "securin",
"cveId": "CVE-2026-44050",
"datePublished": "2026-05-21T07:34:21.459Z",
"dateReserved": "2026-05-05T07:24:42.291Z",
"dateUpdated": "2026-05-22T03:56:03.551Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-44050",
"date": "2026-05-26",
"epss": "0.00137",
"percentile": "0.33219"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-44050\",\"sourceIdentifier\":\"33c584b5-0579-4c06-b2a0-8d8329fcab9c\",\"published\":\"2026-05-21T08:16:20.580\",\"lastModified\":\"2026-05-21T15:20:19.040\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A heap-based buffer overflow in the CNID daemon comm_rcv() function in Netatalk 2.0.0 through 4.4.2 allows a remote authenticated attacker to execute arbitrary code with escalated privileges or cause a denial of service.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"33c584b5-0579-4c06-b2a0-8d8329fcab9c\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":9.9,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.1,\"impactScore\":6.0}]},\"weaknesses\":[{\"source\":\"33c584b5-0579-4c06-b2a0-8d8329fcab9c\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-122\"}]}],\"references\":[{\"url\":\"https://netatalk.io/security/CVE-2026-44050\",\"source\":\"33c584b5-0579-4c06-b2a0-8d8329fcab9c\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-44050\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-21T12:42:34.138475Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-21T12:42:40.814Z\"}}], \"cna\": {\"title\": \"Heap buffer overflow in CNID daemon comm_rcv()\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Arjun Basnet from Securin\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 9.9, \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H\"}}], \"affected\": [{\"vendor\": \"Netatalk\", \"product\": \"Netatalk\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.0.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.4.2\"}, {\"status\": \"unaffected\", \"version\": \"4.4.3\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2026-05-13T00:00:00.000Z\", \"references\": [{\"url\": \"https://netatalk.io/security/CVE-2026-44050\", \"name\": \"Netatalk Security Advisory CVE-2026-44050\", \"tags\": [\"vendor-advisory\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A heap-based buffer overflow in the CNID daemon comm_rcv() function in Netatalk 2.0.0 through 4.4.2 allows a remote authenticated attacker to execute arbitrary code with escalated privileges or cause a denial of service.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-122\", \"description\": \"Heap-based Buffer Overflow\"}]}], \"providerMetadata\": {\"orgId\": \"33c584b5-0579-4c06-b2a0-8d8329fcab9c\", \"shortName\": \"securin\", \"dateUpdated\": \"2026-05-21T07:52:13.123Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-44050\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-22T03:56:03.551Z\", \"dateReserved\": \"2026-05-05T07:24:42.291Z\", \"assignerOrgId\": \"33c584b5-0579-4c06-b2a0-8d8329fcab9c\", \"datePublished\": \"2026-05-21T07:34:21.459Z\", \"assignerShortName\": \"securin\"}",
"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…