CVE-2026-43958 (GCVE-0-2026-43958)

Vulnerability from cvelistv5 – Published: 2026-06-01 17:34 – Updated: 2026-07-01 14:07
VLAI
Title
Rrdtool: rrdtool: stack buffer overflow allows local code execution or denial of service
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:33731 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:34155 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:34156 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-43958 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2460932 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:1.8.0-21.el10_2 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.2
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.7.0-17.el8_10 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
    cpe:/a:redhat:enterprise_linux:8::crb
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.7.2-22.el9_8 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/a:redhat:enterprise_linux:9::crb
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
 Create a notification for this product.
Date Public
2026-06-01 17:04
Credits
Red Hat would like to thank AISLE Research for reporting this issue.
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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  • 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.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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