CVE-2026-43958
Fixed in a distro release EPSS <1%CVSS 7.8
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.
Products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | python3-rrdtool | 1.8.0-21.el10_2 |
| AlmaLinux 10 | rrdtool | 1.8.0-21.el10_2 |
| AlmaLinux 10 | rrdtool-devel | 1.8.0-21.el10_2 |
| AlmaLinux 10 | rrdtool-doc | 1.8.0-21.el10_2 |
| AlmaLinux 10 | rrdtool-lua | 1.8.0-21.el10_2 |
| AlmaLinux 10 | rrdtool-perl | 1.8.0-21.el10_2 |
| AlmaLinux 10 | rrdtool-ruby | 1.8.0-21.el10_2 |
| AlmaLinux 10 | rrdtool-tcl | 1.8.0-21.el10_2 |
| AlmaLinux 8 | python3-rrdtool | 1.7.0-17.el8_10 |
| AlmaLinux 8 | rrdtool | 1.7.0-17.el8_10 |
| AlmaLinux 8 | rrdtool-devel | 1.7.0-17.el8_10 |
| AlmaLinux 8 | rrdtool-doc | 1.7.0-17.el8_10 |
| AlmaLinux 8 | rrdtool-lua | 1.7.0-17.el8_10 |
| AlmaLinux 8 | rrdtool-perl | 1.7.0-17.el8_10 |
| AlmaLinux 8 | rrdtool-ruby | 1.7.0-17.el8_10 |
| AlmaLinux 8 | rrdtool-tcl | 1.7.0-17.el8_10 |
| AlmaLinux 9 | python3-rrdtool | 1.7.2-22.el9_8 |
| AlmaLinux 9 | rrdtool | 1.7.2-22.el9_8 |
| AlmaLinux 9 | rrdtool-devel | 1.7.2-22.el9_8 |
| AlmaLinux 9 | rrdtool-doc | 1.7.2-22.el9_8 |
| AlmaLinux 9 | rrdtool-lua | 1.7.2-22.el9_8 |
| AlmaLinux 9 | rrdtool-perl | 1.7.2-22.el9_8 |
| AlmaLinux 9 | rrdtool-ruby | 1.7.2-22.el9_8 |
| AlmaLinux 9 | rrdtool-tcl | 1.7.2-22.el9_8 |
| Debian 12 | rrdtool | no fix |
| Debian 13 | rrdtool | no fix |
| Debian 14 | rrdtool | no fix |
| Red Hat Enterprise Linux 10.2 | python3-rrdtool | 0:1.8.0-21.el10_2 |
| Red Hat Enterprise Linux 10.2 | python3-rrdtool-debuginfo | 0:1.8.0-21.el10_2 |
| Red Hat Enterprise Linux 10.2 | rrdtool | 0:1.8.0-21.el10_2 |
| Red Hat Enterprise Linux 10.2 | rrdtool-debuginfo | 0:1.8.0-21.el10_2 |
| Red Hat Enterprise Linux 10.2 | rrdtool-debugsource | 0:1.8.0-21.el10_2 |
| Red Hat Enterprise Linux 10.2 | rrdtool-devel | 0:1.8.0-21.el10_2 |
| Red Hat Enterprise Linux 10.2 | rrdtool-doc | 0:1.8.0-21.el10_2 |
| Red Hat Enterprise Linux 10.2 | rrdtool-lua | 0:1.8.0-21.el10_2 |
| Red Hat Enterprise Linux 10.2 | rrdtool-lua-debuginfo | 0:1.8.0-21.el10_2 |
| Red Hat Enterprise Linux 10.2 | rrdtool-perl | 0:1.8.0-21.el10_2 |
| Red Hat Enterprise Linux 10.2 | rrdtool-perl-debuginfo | 0:1.8.0-21.el10_2 |
| Red Hat Enterprise Linux 10.2 | rrdtool-ruby | 0:1.8.0-21.el10_2 |
| Red Hat Enterprise Linux 10.2 | rrdtool-ruby-debuginfo | 0:1.8.0-21.el10_2 |
| Red Hat Enterprise Linux 10.2 | rrdtool-tcl | 0:1.8.0-21.el10_2 |
| Red Hat Enterprise Linux 10.2 | rrdtool-tcl-debuginfo | 0:1.8.0-21.el10_2 |
| Red Hat Enterprise Linux 8 | python3-rrdtool | 0:1.7.0-17.el8_10 |
| Red Hat Enterprise Linux 8 | python3-rrdtool-debuginfo | 0:1.7.0-17.el8_10 |
| Red Hat Enterprise Linux 8 | rrdtool | 0:1.7.0-17.el8_10 |
| Red Hat Enterprise Linux 8 | rrdtool-debuginfo | 0:1.7.0-17.el8_10 |
| Red Hat Enterprise Linux 8 | rrdtool-debugsource | 0:1.7.0-17.el8_10 |
| Red Hat Enterprise Linux 8 | rrdtool-devel | 0:1.7.0-17.el8_10 |
| Red Hat Enterprise Linux 8 | rrdtool-doc | 0:1.7.0-17.el8_10 |
| Red Hat Enterprise Linux 8 | rrdtool-lua | 0:1.7.0-17.el8_10 |
| Red Hat Enterprise Linux 8 | rrdtool-lua-debuginfo | 0:1.7.0-17.el8_10 |
| Red Hat Enterprise Linux 8 | rrdtool-perl | 0:1.7.0-17.el8_10 |
| Red Hat Enterprise Linux 8 | rrdtool-perl-debuginfo | 0:1.7.0-17.el8_10 |
| Red Hat Enterprise Linux 8 | rrdtool-ruby | 0:1.7.0-17.el8_10 |
| Red Hat Enterprise Linux 8 | rrdtool-ruby-debuginfo | 0:1.7.0-17.el8_10 |
| Red Hat Enterprise Linux 8 | rrdtool-tcl | 0:1.7.0-17.el8_10 |
| Red Hat Enterprise Linux 8 | rrdtool-tcl-debuginfo | 0:1.7.0-17.el8_10 |
| Red Hat Enterprise Linux 9 | python3-rrdtool | 0:1.7.2-22.el9_8 |
| Red Hat Enterprise Linux 9 | python3-rrdtool-debuginfo | 0:1.7.2-22.el9_8 |
| Red Hat Enterprise Linux 9 | rrdtool | 0:1.7.2-22.el9_8 |
| Red Hat Enterprise Linux 9 | rrdtool-debuginfo | 0:1.7.2-22.el9_8 |
| Red Hat Enterprise Linux 9 | rrdtool-debugsource | 0:1.7.2-22.el9_8 |
| Red Hat Enterprise Linux 9 | rrdtool-devel | 0:1.7.2-22.el9_8 |
| Red Hat Enterprise Linux 9 | rrdtool-doc | 0:1.7.2-22.el9_8 |
| Red Hat Enterprise Linux 9 | rrdtool-lua | 0:1.7.2-22.el9_8 |
| Red Hat Enterprise Linux 9 | rrdtool-lua-debuginfo | 0:1.7.2-22.el9_8 |
| Red Hat Enterprise Linux 9 | rrdtool-perl | 0:1.7.2-22.el9_8 |
| Red Hat Enterprise Linux 9 | rrdtool-perl-debuginfo | 0:1.7.2-22.el9_8 |
| Red Hat Enterprise Linux 9 | rrdtool-ruby | 0:1.7.2-22.el9_8 |
| Red Hat Enterprise Linux 9 | rrdtool-ruby-debuginfo | 0:1.7.2-22.el9_8 |
| Red Hat Enterprise Linux 9 | rrdtool-tcl | 0:1.7.2-22.el9_8 |
| Red Hat Enterprise Linux 9 | rrdtool-tcl-debuginfo | 0:1.7.2-22.el9_8 |
| Red Hat Enterprise Linux eus 10.0 | rrdtool | 0:1.8.0-20.el10_0.1 |
| Red Hat rhel e4s 9.2 | rrdtool | 0:1.7.2-21.el9_2.1 |
| Red Hat rhel e4s 9.4 | rrdtool | 0:1.7.2-21.el9_4.1 |
| Red Hat rhel eus 9.6 | rrdtool | 0:1.7.2-21.el9_6.1 |
| Rocky Linux 10 | rrdtool | 0:1.8.0-21.el10_2 |
| Rocky Linux 8 | rrdtool | 0:1.7.0-17.el8_10 |
| Rocky Linux 9 | rrdtool | 0:1.7.2-22.el9_8 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | rrdtool | 1.7.0-150000.6.6.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | rrdtool | 1.7.0-150000.6.6.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | rrdtool | 1.7.0-150000.6.6.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | rrdtool | 1.7.0-150000.6.6.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | rrdtool | 1.8.0-150600.3.9.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | rrdtool | 1.7.0-150000.6.6.1 |
| SUSE Linux Enterprise Server 15 SP5-LTSS | rrdtool | 1.7.0-150000.6.6.1 |
| SUSE Linux Enterprise Server 15 SP6-LTSS | rrdtool | 1.8.0-150600.3.9.1 |
| SUSE Linux Enterprise Server 16.0 | rrdtool | 1.9.0-160000.4.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | rrdtool | 1.7.0-150000.6.6.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | rrdtool | 1.7.0-150000.6.6.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | rrdtool | 1.8.0-150600.3.9.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | rrdtool | 1.9.0-160000.4.1 |
| Ubuntu 14.04 LTS | rrdtool | no fix |
| Ubuntu 16.04 LTS | rrdtool | no fix |
| Ubuntu 18.04 LTS | rrdtool | no fix |
| Ubuntu 20.04 LTS | rrdtool | no fix |
| Ubuntu 22.04 LTS | rrdtool | no fix |
| Ubuntu 24.04 LTS | rrdtool | no fix |
| Ubuntu 25.10 | rrdtool | no fix |
| Ubuntu 26.04 LTS | rrdtool | no fix |
| openSUSE Leap 16.0 | rrdtool | 1.9.0-160000.4.1 |
| openSUSE Tumbleweed | rrdtool | 1.10.3-1.1 |