CVE-2025-26596 (GCVE-0-2025-26596)

Vulnerability from cvelistv5 – Published: 2025-02-25 15:54 – Updated: 2026-04-06 12:53
VLAI
Title
Xorg: xwayland: heap overflow in xkbwritekeysyms()
Summary
A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms() differs from what is written in XkbWriteKeySyms(), which may lead to a heap-based buffer overflow.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2025:2500 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:2502 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:2861 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:2862 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:2865 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:2866 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:2873 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:2874 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:2875 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:2879 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:2880 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:3976 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:7163 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:7165 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:7458 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2025-26596 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2345256 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Affected: 0 , < 21.1.16 (semver)
Affected: 22.0.0 , < 24.1.6 (semver)
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:24.1.5-3.el10_0 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.0
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Unaffected: 0:1.1.0-25.el6_10 , < * (rpm)
    cpe:/o:redhat:rhel_els:6
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.8.0-36.el7_9 , < * (rpm)
    cpe:/o:redhat:rhel_els:7
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:1.20.4-30.el7_9 , < * (rpm)
    cpe:/o:redhat:rhel_els:7
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.13.1-15.el8_10 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support Unaffected: 0:1.9.0-15.el8_2.13 , < * (rpm)
    cpe:/a:redhat:rhel_aus:8.2::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 0:1.11.0-8.el8_4.12 , < * (rpm)
    cpe:/a:redhat:rhel_aus:8.4::appstream
    cpe:/a:redhat:rhel_tus:8.4::appstream
    cpe:/a:redhat:rhel_e4s:8.4::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service Unaffected: 0:1.11.0-8.el8_4.12 , < * (rpm)
    cpe:/a:redhat:rhel_aus:8.4::appstream
    cpe:/a:redhat:rhel_tus:8.4::appstream
    cpe:/a:redhat:rhel_e4s:8.4::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Unaffected: 0:1.11.0-8.el8_4.12 , < * (rpm)
    cpe:/a:redhat:rhel_aus:8.4::appstream
    cpe:/a:redhat:rhel_tus:8.4::appstream
    cpe:/a:redhat:rhel_e4s:8.4::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:1.12.0-6.el8_6.13 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.6::appstream
    cpe:/a:redhat:rhel_aus:8.6::appstream
    cpe:/a:redhat:rhel_e4s:8.6::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service Unaffected: 0:1.12.0-6.el8_6.13 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.6::appstream
    cpe:/a:redhat:rhel_aus:8.6::appstream
    cpe:/a:redhat:rhel_e4s:8.6::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Unaffected: 0:1.12.0-6.el8_6.13 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.6::appstream
    cpe:/a:redhat:rhel_aus:8.6::appstream
    cpe:/a:redhat:rhel_e4s:8.6::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support Unaffected: 0:1.12.0-15.el8_8.12 , < * (rpm)
    cpe:/a:redhat:rhel_eus:8.8::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.14.1-1.el9_5.1 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.20.11-28.el9_6 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::crb
    cpe:/a:redhat:enterprise_linux:9::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:23.2.7-3.el9_6 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::crb
    cpe:/a:redhat:enterprise_linux:9::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:1.11.0-22.el9_0.13 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:9.0::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support Unaffected: 0:1.12.0-14.el9_2.10 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.2::appstream
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:1.13.1-8.el9_4.5 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.4::appstream
 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 8     cpe:/o:redhat:enterprise_linux:8
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
 Create a notification for this product.
Date Public
2025-02-25 00:00
Show details on NVD website
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      "cveMetadata": "{\"cveId\": \"CVE-2025-26596\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-06T12:53:14.993Z\", \"dateReserved\": \"2025-02-12T14:12:22.795Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2025-02-25T15:54:23.693Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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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.