CVE-2026-25243 (GCVE-0-2026-25243)

Vulnerability from cvelistv5 – Published: 2026-05-05 16:44 – Updated: 2026-06-30 12:06
VLAI
Title
redis-server RESTORE invalid memory access may allow remote code execution
Summary
Redis is an in-memory data structure store. In versions of redis-server up to 8.6.3, the RESTORE command does not properly validate serialized values. An authenticated attacker with permission to execute RESTORE can supply a crafted serialized payload that triggers invalid memory access and may lead to remote code execution. A workaround is to restrict access to the RESTORE command with ACL rules. This is patched in version 8.6.3.
Severity
7.7 (High)
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8 (High)
CVSS:3.1/AV:N/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-122 - Heap-based Buffer Overflow
Assigner
References
URL Tags
https://github.com/redis/redis/security/advisorie… x_refsource_CONFIRM
https://github.com/redis/redis/releases/tag/8.6.3 x_refsource_MISC
https://access.redhat.com/security/cve/CVE-2026-25243 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2466828 issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:26540 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25216 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26008 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:27787 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:29817 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:33427 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:27716 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:28139 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:28142 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26233 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:26306 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:23229 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25219 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25925 vendor-advisoryx_refsource_REDHAT
Impacted products
Vendor Product Version
redis redis Affected: < 8.6.3
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Red Hat Red Hat Enterprise Linux AppStream EUS (v. 10.0)     cpe:/o:redhat:enterprise_linux_eus:10.0
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Red Hat Red Hat Enterprise Linux AppStream (v. 10)     cpe:/o:redhat:enterprise_linux:10.2
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Red Hat Red Hat Enterprise Linux AppStream (v. 8)     cpe:/a:redhat:enterprise_linux:8::appstream
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Red Hat Red Hat Enterprise Linux AppStream AUS (v.8.4)     cpe:/a:redhat:rhel_aus:8.4::appstream
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Red Hat Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)     cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
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Red Hat Red Hat Enterprise Linux AppStream AUS (v.8.6)     cpe:/a:redhat:rhel_aus:8.6::appstream
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Red Hat Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)     cpe:/a:redhat:rhel_eus_long_life:8.6::appstream
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Red Hat Red Hat Enterprise Linux AppStream E4S (v.8.8)     cpe:/a:redhat:rhel_e4s:8.8::appstream
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Red Hat Red Hat Enterprise Linux AppStream TUS (v.8.8)     cpe:/a:redhat:rhel_tus:8.8::appstream
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Red Hat Red Hat Enterprise Linux AppStream E4S (v.9.2)     cpe:/a:redhat:rhel_e4s:9.2::appstream
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Red Hat Red Hat Enterprise Linux AppStream E4S (v.9.4)     cpe:/a:redhat:rhel_e4s:9.4::appstream
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Red Hat Red Hat Enterprise Linux AppStream EUS (v.9.6)     cpe:/a:redhat:rhel_eus:9.6::appstream
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Red Hat Red Hat Enterprise Linux AppStream (v. 9)     cpe:/a:redhat:enterprise_linux:9::appstream
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Red Hat Red Hat Hardened Images     cpe:/a:redhat:hummingbird:1
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}


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Tags
Taxonomy of the tags.





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

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.


Detection rules are retrieved from Rulezet.