CVE-2026-43958

A flaw was found in rrdcached, a component of rrdtool. A local attacker with access to a rrdcached socket can exploit a stack-based buffer overflow by sending an oversized CREATE request. This vulnerability can lead to a denial of service by crashing the daemon or potentially allow for arbitrary code execution, impacting the integrity and confidentiality of data.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:33731
https://access.redhat.com/errata/RHSA-2026:34155
https://access.redhat.com/errata/RHSA-2026:34156
https://access.redhat.com/errata/RHSA-2026:68702
https://access.redhat.com/errata/RHSA-2026:71600
https://access.redhat.com/errata/RHSA-2026:72277
https://access.redhat.com/errata/RHSA-2026:72278
https://access.redhat.com/security/cve/CVE-2026-43958
https://bugzilla.redhat.com/show_bug.cgi?id=2460932

Configurations

No configuration.

History

28 Sep 2026, 04:17

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:72277 - () https://access.redhat.com/errata/RHSA-2026:72278 -

24 Sep 2026, 22:16

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:71600 -

17 Sep 2026, 19:16

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:68702 -

Information

Published : 2026-06-01 19:16

Updated : 2026-09-28 04:17

NVD link : CVE-2026-43958

Mitre link : CVE-2026-43958

CVE.ORG link : CVE-2026-43958

JSON object : View

Products Affected

No product.

CWE

CWE-121

Stack-based Buffer Overflow

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"versions": [{"status": "unaffected", "version": "0:1.8.0-21.el10_2", "lessThan": "*", "versionType": "rpm"}], "packageName": "rrdtool", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux_eus:10.0"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 10.0 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:1.8.0-20.el10_0.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "rrdtool", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:8::appstream", "cpe:/a:redhat:enterprise_linux:8::crb"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 8", "versions": [{"status": "unaffected", "version": "0:1.7.0-17.el8_10", "lessThan": "*", "versionType": "rpm"}], "packageName": "rrdtool", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:enterprise_linux:9::appstream", "cpe:/a:redhat:enterprise_linux:9::crb"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9", "versions": [{"status": "unaffected", "version": "0:1.7.2-22.el9_8", "lessThan": "*", "versionType": "rpm"}], "packageName": "rrdtool", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:9.2::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:1.7.2-21.el9_2.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "rrdtool", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_e4s:9.4::appstream"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions", "versions": [{"status": "unaffected", "version": "0:1.7.2-21.el9_4.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "rrdtool", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:rhel_eus:9.6::appstream", "cpe:/a:redhat:rhel_eus:9.6::crb"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 9.6 Extended Update Support", "versions": [{"status": "unaffected", "version": "0:1.7.2-21.el9_6.1", "lessThan": "*", "versionType": "rpm"}], "packageName": "rrdtool", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:6"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 6", "packageName": "rrdtool", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/o:redhat:enterprise_linux:7"], "vendor": "Red Hat", "product": "Red Hat Enterprise Linux 7", "packageName": "rrdtool", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}]}], "published": "2026-06-01T19:16:47.970", "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:33731", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:34155", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:34156", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:68702", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:71600", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:72277", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:72278", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-43958", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460932", "source": "secalert@redhat.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-121"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in rrdcached, a component of rrdtool. A local attacker with access to a rrdcached socket can exploit a stack-based buffer overflow by sending an oversized CREATE request. This vulnerability can lead to a denial of service by crashing the daemon or potentially allow for arbitrary code execution, impacting the integrity and confidentiality of data."}, {"lang": "es", "value": "Se encontr\u00f3 un defecto en rrdcached, un componente de rrdtool. Un atacante local con acceso a un socket de rrdcached puede explotar un desbordamiento de b\u00fafer basado en pila enviando una solicitud CREATE de tama\u00f1o excesivo. Esta vulnerabilidad puede conducir a una denegaci\u00f3n de servicio al bloquear el demonio o potencialmente permitir la ejecuci\u00f3n de c\u00f3digo arbitrario, lo que afecta la integridad y confidencialidad de los datos."}], "lastModified": "2026-09-28T04:17:08.333", "sourceIdentifier": "secalert@redhat.com"}