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vuln-cve/data/2026/85xxx/CVE-2026-85977.json
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"cveId": "CVE-2026-85977",
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"state": "PUBLISHED",
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"dateReserved": "2026-09-04T18:43:38.572Z",
"datePublished": "2026-10-16T18:20:43.454Z",
"dateUpdated": "2026-11-06T07:45:28.465Z"
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"attackVector": "NETWORK",
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"baseScore": 5.3,
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H",
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"value": "A flaw was found in libtirpc. A remote attacker can exploit this vulnerability by sending specially crafted PMAPPROC_DUMP replies to a client application that uses the pmap_getmaps() function against an attacker-controlled host. This unbounded decoding can lead to excessive memory and CPU allocation, causing the client process to experience a Denial of Service (DoS) due to resource exhaustion."
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"url": "https://access.redhat.com/errata/RHSA-2026:80360",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2478979",
"name": "RHBZ#2478979",
"tags": [
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],
"datePublic": "2026-10-16T15:03:06.419Z",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-1050",
"description": "Excessive Platform Resource Consumption within a Loop",
"lang": "en",
"type": "CWE"
}
]
}
],
"x_redhatCweChain": "CWE-1050: Excessive Platform Resource Consumption within a Loop",
"workarounds": [
{
"lang": "en",
"value": "To mitigate this issue, avoid configuring applications that use `pmap_getmaps()` to query untrusted or attacker-controlled portmapper services. If such functionality is essential, restrict network access for services utilizing `pmap_getmaps()` to only trusted hosts via firewall rules. Additionally, consider isolating client applications that call `pmap_getmaps()` into constrained environments to limit the impact of potential resource exhaustion."
}
],
"timeline": [
{
"lang": "en",
"time": "2026-05-18T03:32:25.000Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-10-16T15:03:06.419Z",
"value": "Made public."
}
],
"credits": [
{
"lang": "en",
"value": "This issue was discovered by Found by AISLE in partnership with Red Hat."
}
],
"providerMetadata": {
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"shortName": "redhat",
"dateUpdated": "2026-11-06T07:45:28.465Z"
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"references": [
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2478979",
"tags": [
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"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-10-19T14:20:40.421460Z",
"id": "CVE-2026-85977",
"options": [
{
"Exploitation": "poc"
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{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
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}
}
],
"title": "CISA ADP Vulnrichment",
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