CVE-2026-43958— Rrdtool: rrdtool: stack buffer overflow allows local code execution or denial of service
Possible ATT&CK Techniques 3AI
T1068 · Exploitation for Privilege Escalation T1499 · Endpoint Denial of Service T1203 · Exploitation for Client ExecutionAffected Version Matrix 5
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | any | affected |
| Red Hat | Red Hat Enterprise Linux 6 | any | affected |
| Red Hat | Red Hat Enterprise Linux 7 | any | affected |
| Red Hat | Red Hat Enterprise Linux 8 | any | affected |
| Red Hat | Red Hat Enterprise Linux 9 | any | affected |
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I. Basic Information for CVE-2026-43958
Vulnerability Information
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Vulnerability Title
Rrdtool: rrdtool: stack buffer overflow allows local code execution or denial of service
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | - | cpe:/o:redhat:enterprise_linux:10 | |
| 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 Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 | |
| Red Hat | Red Hat Enterprise Linux 9 | - | cpe:/o:redhat:enterprise_linux:9 |
II. Public POCs for CVE-2026-43958
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-43958 (1)
Other References for CVE-2026-43958 (1)
Same Patch Batch · Red Hat · 2026-06-01 · 5 CVEs total
| CVE-2026-10118 | 7.8 HIGH | Poppler: integer overflow in poppler splashoutputdev::tilingpatternfill leads to heap buff |
| CVE-2026-10517 | 5.8 MEDIUM | Clair: clair: unauthenticated ssrf via manifest layer uri enables internal network reconna |
| CVE-2026-10533 | 5.0 MEDIUM | Openshift: openshift: non-admin user can bypass resourcequota and flood etcd with events c |
| CVE-2026-5419 | 3.7 LOW | Guntls: gnutls: information disclosure via timing side-channel in pkcs#7 padding removal |
IV. Related Vulnerabilities
Same product: Red Hat Enterprise Linux 10
- CVE-2026-5419
Guntls: gnutls: information disclosure via timing side-chann - CVE-2026-10118
Poppler: integer overflow in poppler splashoutputdev::tiling - CVE-2026-6324
Libsoup: libsoup: http request smuggling via unsigned to sig - CVE-2026-10028
Glib-networking: infinite loop in glib-networking gnutls bac - CVE-2026-4408
Samba: remote code execution in samr
Same vendor: Red Hat
- CVE-2026-1784
Ose-cluster-ingress-operator: remote code execution through - CVE-2026-5419
Guntls: gnutls: information disclosure via timing side-chann - CVE-2026-10118
Poppler: integer overflow in poppler splashoutputdev::tiling - CVE-2026-10533
Openshift: openshift: non-admin user can bypass resourcequot - CVE-2026-10517
Clair: clair: unauthenticated ssrf via manifest layer uri en
Same weakness: CWE-121
- CVE-2026-10528
Orthanc DICOM Server DCMTK FromDcmtkBridge.cpp read stack-ba - CVE-2026-24085
Stack-based Buffer Overflow in Display - CVE-2025-59613
Stack-based Buffer Overflow in Windows Compute - CVE-2025-59612
Stack-based Buffer Overflow in Windows Compute - CVE-2026-10293
UTT HiPER 1200GW formFireWall strcpy stack-based overflow
V. Comments for CVE-2026-43958
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