{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2025-26597","sourceIdentifier":"secalert@redhat.com","published":"2025-02-25T16:15:38.797","lastModified":"2026-11-04T22:17:30.587","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size."},{"lang":"es","value":"Se encontró una falla de desbordamiento de búfer en X.Org y Xwayland. Si se llama a XkbChangeTypesOfKey() con un grupo 0, cambiará el tamaño de la tabla de símbolos de teclas a 0, pero dejará las acciones de teclas sin cambios. Si luego se llama a la misma función con un valor de grupos distinto de cero, esto provocará un desbordamiento de búfer porque las acciones de teclas tienen un tamaño incorrecto."}],"affected":[{"source":"secalert@redhat.com","affectedData":[{"defaultStatus":"unaffected","collectionURL":"https://gitlab.freedesktop.org/xorg/xserver/","packageName":"xserver","versions":[{"version":"0","lessThan":"21.1.16","versionType":"semver","status":"affected"},{"version":"22.0.0","lessThan":"24.1.6","versionType":"semver","status":"affected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"xorg-x11-server-Xwayland","cpes":["cpe:/o:redhat:enterprise_linux:10.0"],"versions":[{"version":"0:24.1.5-3.el10_0","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6 Extended Lifecycle Support  - EXTENSION","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"tigervnc","cpes":["cpe:/o:redhat:rhel_els:6"],"versions":[{"version":"0:1.1.0-25.el6_10","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7 Extended Lifecycle Support","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"tigervnc","cpes":["cpe:/o:redhat:rhel_els:7"],"versions":[{"version":"0:1.8.0-36.el7_9","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7 Extended Lifecycle Support","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"xorg-x11-server","cpes":["cpe:/o:redhat:rhel_els:7"],"versions":[{"version":"0:1.20.4-30.el7_9","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"tigervnc","cpes":["cpe:/a:redhat:enterprise_linux:8::appstream"],"versions":[{"version":"0:1.13.1-15.el8_10","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.2 Advanced Update Support","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"tigervnc","cpes":["cpe:/a:redhat:rhel_aus:8.2::appstream"],"versions":[{"version":"0:1.9.0-15.el8_2.13","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"tigervnc","cpes":["cpe:/a:redhat:rhel_aus:8.4::appstream","cpe:/a:redhat:rhel_e4s:8.4::appstream","cpe:/a:redhat:rhel_tus:8.4::appstream"],"versions":[{"version":"0:1.11.0-8.el8_4.12","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.4 Telecommunications Update Service","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"tigervnc","cpes":["cpe:/a:redhat:rhel_aus:8.4::appstream","cpe:/a:redhat:rhel_e4s:8.4::appstream","cpe:/a:redhat:rhel_tus:8.4::appstream"],"versions":[{"version":"0:1.11.0-8.el8_4.12","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"tigervnc","cpes":["cpe:/a:redhat:rhel_aus:8.4::appstream","cpe:/a:redhat:rhel_e4s:8.4::appstream","cpe:/a:redhat:rhel_tus:8.4::appstream"],"versions":[{"version":"0:1.11.0-8.el8_4.12","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"tigervnc","cpes":["cpe:/a:redhat:rhel_aus:8.6::appstream","cpe:/a:redhat:rhel_e4s:8.6::appstream","cpe:/a:redhat:rhel_tus:8.6::appstream"],"versions":[{"version":"0:1.12.0-6.el8_6.13","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.6 Telecommunications Update Service","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"tigervnc","cpes":["cpe:/a:redhat:rhel_aus:8.6::appstream","cpe:/a:redhat:rhel_e4s:8.6::appstream","cpe:/a:redhat:rhel_tus:8.6::appstream"],"versions":[{"version":"0:1.12.0-6.el8_6.13","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"tigervnc","cpes":["cpe:/a:redhat:rhel_aus:8.6::appstream","cpe:/a:redhat:rhel_e4s:8.6::appstream","cpe:/a:redhat:rhel_tus:8.6::appstream"],"versions":[{"version":"0:1.12.0-6.el8_6.13","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8.8 Extended Update Support","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"tigervnc","cpes":["cpe:/a:redhat:rhel_eus:8.8::appstream"],"versions":[{"version":"0:1.12.0-15.el8_8.12","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"tigervnc","cpes":["cpe:/a:redhat:enterprise_linux:9::appstream"],"versions":[{"version":"0:1.14.1-1.el9_5.1","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"xorg-x11-server","cpes":["cpe:/a:redhat:enterprise_linux:9::appstream","cpe:/a:redhat:enterprise_linux:9::crb"],"versions":[{"version":"0:1.20.11-28.el9_6","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"xorg-x11-server-Xwayland","cpes":["cpe:/a:redhat:enterprise_linux:9::appstream","cpe:/a:redhat:enterprise_linux:9::crb"],"versions":[{"version":"0:23.2.7-3.el9_6","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"tigervnc","cpes":["cpe:/a:redhat:rhel_e4s:9.0::appstream"],"versions":[{"version":"0:1.11.0-22.el9_0.13","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9.2 Extended Update Support","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"tigervnc","cpes":["cpe:/a:redhat:rhel_eus:9.2::appstream"],"versions":[{"version":"0:1.12.0-14.el9_2.10","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9.4 Extended Update Support","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"tigervnc","cpes":["cpe:/a:redhat:rhel_eus:9.4::appstream"],"versions":[{"version":"0:1.13.1-8.el9_4.5","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 6","defaultStatus":"unknown","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"xorg-x11-server","cpes":["cpe:/o:redhat:rhel_els:6"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"xorg-x11-server","cpes":["cpe:/a:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"xorg-x11-server-Xwayland","cpes":["cpe:/a:redhat:enterprise_linux:8"]}]}],"metrics":{"cvssMetricV31":[{"source":"secalert@redhat.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-02-25T16:39:35.677718Z","id":"CVE-2025-26597","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"secalert@redhat.com","type":"Secondary","description":[{"lang":"en","value":"CWE-119"}]},{"source":"nvd@nist.gov","type":"Secondary","description":[{"lang":"en","value":"CWE-119"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:tigervnc:tigervnc:-:*:*:*:*:*:*:*","matchCriteriaId":"79A8316C-BA22-441E-92AF-415AFABCEB76"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:*","versionEndExcluding":"21.1.16","matchCriteriaId":"07E5F462-A20F-472C-85E7-804D46F01A7A"},{"vulnerable":true,"criteria":"cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:*","versionEndExcluding":"24.1.6","matchCriteriaId":"1CBC57E6-F54D-4B54-9263-9753CCA3EEF7"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*","matchCriteriaId":"142AD0DD-4CF3-4D74-9442-459CE3347E3A"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*","matchCriteriaId":"F4CFF558-3C47-480D-A2F0-BABF26042943"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*","matchCriteriaId":"7F6FB57C-2BC7-487C-96DD-132683AEB35D"}]}]}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2025:2500","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2025:2502","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2025:2861","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2025:2862","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2025:2865","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2025:2866","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2025:2873","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2025:2874","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2025:2875","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2025:2879","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2025:2880","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2025:3976","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:7163","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:7165","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:7458","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2025-26597","source":"secalert@redhat.com","tags":["Third Party Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2345255","source":"secalert@redhat.com","tags":["Issue Tracking"]},{"url":"http://www.openwall.com/lists/oss-security/2026/06/02/1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/02/msg00036.html","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}