Action not permitted
Modal body text goes here.
Modal Title
Modal Body
OESA-2026-1045 (CVE-2025-9820)
Vulnerability from osv_openeuler – Published: 2026-01-09 11:10 – Updated: 2026-08-06 11:10 – Source websiteGnuTLS is a secure communications library implementing the SSL, TLS and DTLS protocols and technologies around them. It provides a simple C language application programming interface (API) to access the secure communications protocols as well as APIs to parse and write X.509, PKCS #12, and other required structures. The project strives to provide a secure communications back-end, simple to use and integrated with the rest of the base Linux libraries. A back-end designed to work and be secure out of the box, keeping the complexity of TLS and PKI out of application code.
Security Fix(es):
(CVE-2025-9820)
| URL | Type | |
|---|---|---|
{
"affected": [
{
"ecosystem_specific": {
"aarch64": [
"gnutls-3.7.2-17.oe2203sp3.aarch64.rpm",
"gnutls-debuginfo-3.7.2-17.oe2203sp3.aarch64.rpm",
"gnutls-debugsource-3.7.2-17.oe2203sp3.aarch64.rpm",
"gnutls-devel-3.7.2-17.oe2203sp3.aarch64.rpm",
"gnutls-utils-3.7.2-17.oe2203sp3.aarch64.rpm"
],
"noarch": [
"gnutls-help-3.7.2-17.oe2203sp3.noarch.rpm"
],
"src": [
"gnutls-3.7.2-17.oe2203sp3.src.rpm"
],
"x86_64": [
"gnutls-3.7.2-17.oe2203sp3.x86_64.rpm",
"gnutls-debuginfo-3.7.2-17.oe2203sp3.x86_64.rpm",
"gnutls-debugsource-3.7.2-17.oe2203sp3.x86_64.rpm",
"gnutls-devel-3.7.2-17.oe2203sp3.x86_64.rpm",
"gnutls-utils-3.7.2-17.oe2203sp3.x86_64.rpm"
]
},
"package": {
"ecosystem": "openEuler:22.03-LTS-SP3",
"name": "gnutls",
"purl": "pkg:rpm/openEuler/gnutls\u0026distro=openEuler-22.03-LTS-SP3"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.7.2-17.oe2203sp3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"severity": "Medium"
},
"details": "GnuTLS is a secure communications library implementing the SSL, TLS and DTLS protocols and technologies around them. It provides a simple C language application programming interface (API) to access the secure communications protocols as well as APIs to parse and write X.509, PKCS #12, and other required structures. The project strives to provide a secure communications back-end, simple to use and integrated with the rest of the base Linux libraries. A back-end designed to work and be secure out of the box, keeping the complexity of TLS and PKI out of application code.\r\n\r\nSecurity Fix(es):\n\n(CVE-2025-9820)",
"id": "OESA-2026-1045",
"modified": "2026-08-06T11:10:05Z",
"published": "2026-01-09T11:10:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1045"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-9820"
}
],
"schema_version": "1.7.2",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
}
],
"summary": "gnutls security update",
"upstream": [
"CVE-2025-9820"
]
}
CVE-2025-9820 (GCVE-0-2025-9820)
Vulnerability from cvelistv5 – Published: 2026-01-26 19:58 – Updated: 2026-10-14 19:46- CWE-121 - Stack-based Buffer Overflow
| Vendor | Product | Version | |
|---|---|---|---|
|
Affected:
3.8.1
Affected: 3.8.2 Affected: 3.8.3 Affected: 3.8.4 Affected: 3.8.5 Affected: 3.8.6 Affected: 3.8.7 Affected: 3.8.8 Affected: 3.8.9 Affected: 3.8.10 |
|||
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:3.8.10-3.el10_1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.1 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:3.6.16-8.el8_10.5 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::appstream cpe:/o:redhat:enterprise_linux:8::baseos |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:3.8.3-10.el9_7 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream cpe:/o:redhat:enterprise_linux:9::baseos |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325677 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325711 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325710 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-3.1777325680 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325709 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325680 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | RHEL-8 based Middleware Containers |
Unaffected:
7.13.5-4.1777325708 , < *
(rpm)
cpe:/a:redhat:rhosemc:1.0::el8 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 |
Unaffected:
1791459707 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.18::el9 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 |
Unaffected:
1791459711 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.18::el9 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 |
Unaffected:
1791459759 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.18::el9 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 |
Unaffected:
1789029076 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.18::el9 |
|
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.18 |
Unaffected:
1791966259 , < *
(rpm)
cpe:/a:redhat:cert_manager:1.18::el9 |
|
| Red Hat | Red Hat Ceph Storage 8 |
Unaffected:
1774002867 , < *
(rpm)
cpe:/a:redhat:ceph_storage:8::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1775668717 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Discovery 2 |
Unaffected:
1775675922 , < *
(rpm)
cpe:/a:redhat:discovery:2::el9 |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
3.8.12-1.1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Insights proxy 1.5 |
Unaffected:
1773685509 , < *
(rpm)
cpe:/a:redhat:insights_proxy:1.5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1773670073 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1773672059 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1773668803 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Update Infrastructure 5 |
Unaffected:
1773670137 , < *
(rpm)
cpe:/a:redhat:rhui:5::el9 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
|
| Siemens | SIMATIC CN 4100 |
Affected:
0 , < V5.0
(custom)
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-01-26T20:08:12.926Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2025/11/20/2"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-9820",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-26T20:10:45.615719Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-01-26T20:12:19.249Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"defaultStatus": "unknown",
"product": "SIMATIC CN 4100",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V5.0",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-12T12:02:44.799Z",
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"shortName": "siemens-SADP"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
}
],
"x_adpType": "supplier"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://gitlab.com/gnutls/gnutls",
"packageName": "gnutls",
"versions": [
{
"status": "affected",
"version": "3.8.1"
},
{
"status": "affected",
"version": "3.8.2"
},
{
"status": "affected",
"version": "3.8.3"
},
{
"status": "affected",
"version": "3.8.4"
},
{
"status": "affected",
"version": "3.8.5"
},
{
"status": "affected",
"version": "3.8.6"
},
{
"status": "affected",
"version": "3.8.7"
},
{
"status": "affected",
"version": "3.8.8"
},
{
"status": "affected",
"version": "3.8.9"
},
{
"status": "affected",
"version": "3.8.10"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.1"
],
"defaultStatus": "affected",
"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:3.8.10-3.el10_1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream",
"cpe:/o:redhat:enterprise_linux:8::baseos"
],
"defaultStatus": "affected",
"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:3.6.16-8.el8_10.5",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream",
"cpe:/o:redhat:enterprise_linux:8::baseos"
],
"defaultStatus": "affected",
"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:3.6.16-8.el8_10.5",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream",
"cpe:/o:redhat:enterprise_linux:9::baseos"
],
"defaultStatus": "affected",
"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:3.8.3-10.el9_7",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream",
"cpe:/o:redhat:enterprise_linux:9::baseos"
],
"defaultStatus": "affected",
"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:3.8.3-10.el9_7",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhosemc:1.0::el8"
],
"defaultStatus": "affected",
"packageName": "rhpam-7/rhpam-businesscentral-monitoring-rhel8",
"product": "RHEL-8 based Middleware Containers",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "7.13.5-4.1777325677",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhosemc:1.0::el8"
],
"defaultStatus": "affected",
"packageName": "rhpam-7/rhpam-businesscentral-rhel8",
"product": "RHEL-8 based Middleware Containers",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "7.13.5-4.1777325711",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhosemc:1.0::el8"
],
"defaultStatus": "affected",
"packageName": "rhpam-7/rhpam-controller-rhel8",
"product": "RHEL-8 based Middleware Containers",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "7.13.5-4.1777325710",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhosemc:1.0::el8"
],
"defaultStatus": "affected",
"packageName": "rhpam-7/rhpam-dashbuilder-rhel8",
"product": "RHEL-8 based Middleware Containers",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "7.13.5-3.1777325680",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhosemc:1.0::el8"
],
"defaultStatus": "affected",
"packageName": "rhpam-7/rhpam-kieserver-rhel8",
"product": "RHEL-8 based Middleware Containers",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "7.13.5-4.1777325709",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhosemc:1.0::el8"
],
"defaultStatus": "affected",
"packageName": "rhpam-7/rhpam-process-migration-rhel8",
"product": "RHEL-8 based Middleware Containers",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "7.13.5-4.1777325680",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhosemc:1.0::el8"
],
"defaultStatus": "affected",
"packageName": "rhpam-7/rhpam-smartrouter-rhel8",
"product": "RHEL-8 based Middleware Containers",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "7.13.5-4.1777325708",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:cert_manager:1.18::el9"
],
"defaultStatus": "affected",
"packageName": "cert-manager/jetstack-cert-manager-acmesolver-rhel9",
"product": "Cert Manager support for Red Hat OpenShift release 1.18",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1791459707",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:cert_manager:1.18::el9"
],
"defaultStatus": "affected",
"packageName": "cert-manager/jetstack-cert-manager-rhel9",
"product": "Cert Manager support for Red Hat OpenShift release 1.18",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1791459711",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:cert_manager:1.18::el9"
],
"defaultStatus": "affected",
"packageName": "cert-manager/cert-manager-istio-csr-rhel9",
"product": "Cert Manager support for Red Hat OpenShift release 1.18",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1791459759",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:cert_manager:1.18::el9"
],
"defaultStatus": "affected",
"packageName": "cert-manager/cert-manager-operator-rhel9",
"product": "Cert Manager support for Red Hat OpenShift release 1.18",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1789029076",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:cert_manager:1.18::el9"
],
"defaultStatus": "affected",
"packageName": "cert-manager/cert-manager-operator-bundle",
"product": "Cert Manager support for Red Hat OpenShift release 1.18",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1791966259",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:ceph_storage:8::el9"
],
"defaultStatus": "affected",
"packageName": "rhceph/rhceph-8-rhel9",
"product": "Red Hat Ceph Storage 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1774002867",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:discovery:2::el9"
],
"defaultStatus": "affected",
"packageName": "discovery/discovery-server-rhel9",
"product": "Red Hat Discovery 2",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1775668717",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:discovery:2::el9"
],
"defaultStatus": "affected",
"packageName": "discovery/discovery-ui-rhel9",
"product": "Red Hat Discovery 2",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1775675922",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "affected",
"packageName": "gnutls-main",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "3.8.12-1.1.hum1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:insights_proxy:1.5::el9"
],
"defaultStatus": "affected",
"packageName": "insights-proxy/insights-proxy-container-rhel9",
"product": "Red Hat Insights proxy 1.5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1773685509",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/cds-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1773670073",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/haproxy-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1773672059",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/installer-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1773668803",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:rhui:5::el9"
],
"defaultStatus": "affected",
"packageName": "rhui5/rhua-rhel9",
"product": "Red Hat Update Infrastructure 5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1773670137",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "affected",
"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "affected",
"packageName": "gnutls",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-8",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "affected",
"packageName": "openshift/ose-rhel-coreos-9",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
}
],
"datePublic": "2025-11-18T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in the GnuTLS library, specifically in the gnutls_pkcs11_token_init() function that handles PKCS#11 token initialization. When a token label longer than expected is processed, the function writes past the end of a fixed-size stack buffer. This programming error can cause the application using GnuTLS to crash or, in certain conditions, be exploited for code execution. As a result, systems or applications relying on GnuTLS may be vulnerable to a denial of service or local privilege escalation attacks."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Low"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-14T19:46:28.307Z",
"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"shortName": "redhat"
},
"references": [
{
"name": "RHSA-2026:13812",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:13812"
},
{
"name": "RHSA-2026:3477",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:3477"
},
{
"name": "RHSA-2026:4188",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:4188"
},
{
"name": "RHSA-2026:4655",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:4655"
},
{
"name": "RHSA-2026:4943",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:4943"
},
{
"name": "RHSA-2026:5585",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:5585"
},
{
"name": "RHSA-2026:5606",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:5606"
},
{
"name": "RHSA-2026:7329",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7329"
},
{
"name": "RHSA-2026:7477",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7477"
},
{
"name": "RHSA-2026:82347",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:82347"
},
{
"name": "RHSA-2026:82354",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:82354"
},
{
"name": "RHSA-2026:82372",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:82372"
},
{
"name": "RHSA-2026:82857",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:82857"
},
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2025-9820"
},
{
"name": "RHBZ#2392528",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2392528"
},
{
"url": "https://gitlab.com/gnutls/gnutls/-/commit/1d56f96f6ab5034d677136b9d50b5a75dff0faf5"
},
{
"url": "https://gitlab.com/gnutls/gnutls/-/issues/1732"
},
{
"url": "https://www.gnutls.org/security-new.html#GNUTLS-SA-2025-11-18"
}
],
"timeline": [
{
"lang": "en",
"time": "2025-09-02T10:00:18.839Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2025-11-18T00:00:00.000Z",
"value": "Made public."
}
],
"title": "Gnutls: stack-based buffer overflow in gnutls_pkcs11_token_init() function",
"workarounds": [
{
"lang": "en",
"value": "Mitigation for this issue is either not available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Applying the upstream patch or vendor-supplied security update is the recommended resolution."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
},
"x_redhatCweChain": "CWE-121: Stack-based Buffer Overflow"
}
},
"cveMetadata": {
"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
"assignerShortName": "redhat",
"cveId": "CVE-2025-9820",
"datePublished": "2026-01-26T19:58:32.886Z",
"dateReserved": "2025-09-02T07:22:32.478Z",
"dateUpdated": "2026-10-14T19:46:28.307Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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
Loading timeline…
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.