{"document":{"aggregate_severity":{"namespace":"https://access.redhat.com/security/updates/classification/","text":"Important"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright © Red Hat, Inc. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"legal_disclaimer","text":"This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.","title":"Terms of Use"}],"publisher":{"category":"vendor","contact_details":"https://access.redhat.com/security/team/contact/","issuing_authority":"Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.","name":"Red Hat Product Security","namespace":"https://www.redhat.com"},"references":[{"category":"self","summary":"Canonical URL","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-59250.json"}],"title":"megaco: Erlang/OTP Megaco Flex Scanner: Remote code execution or denial of service via oversized message","tracking":{"current_release_date":"2026-08-19T13:40:01+00:00","generator":{"date":"2026-08-19T13:40:01+00:00","engine":{"name":"Red Hat SDEngine","version":"5.3.16"}},"id":"CVE-2026-59250","initial_release_date":"2026-07-27T15:25:03.106000+00:00","revision_history":[{"date":"2026-07-27T15:25:03.106000+00:00","number":"1","summary":"Initial version"},{"date":"2026-08-18T20:40:50.418181+00:00","number":"2","summary":"Current version"},{"date":"2026-08-19T13:40:01+00:00","number":"3","summary":"Last generated version"}],"status":"final","version":"3"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"Red Hat Hardened Images","product":{"name":"Red Hat Hardened Images","product_id":"Red Hat Hardened Images","product_identification_helper":{"cpe":"cpe:/a:redhat:hummingbird:1"}}}],"category":"product_family","name":"Red Hat Hardened Images"},{"branches":[{"category":"product_version","name":"erlang27-main@aarch64","product":{"name":"erlang27-main@aarch64","product_id":"erlang27-main@aarch64","product_identification_helper":{"purl":"pkg:rpm/redhat/erlang27@27.3.4.15-0.1.hum1?arch=aarch64&distro=hummingbird-20251124&repository_id=public-hummingbird-aarch64-rpms"}}}],"category":"architecture","name":"aarch64"},{"branches":[{"category":"product_version","name":"erlang27-main@src","product":{"name":"erlang27-main@src","product_id":"erlang27-main@src","product_identification_helper":{"purl":"pkg:rpm/redhat/erlang27@27.3.4.15-0.1.hum1?arch=src&distro=hummingbird-20251124&repository_id=public-hummingbird-source-rpms"}}}],"category":"architecture","name":"src"},{"branches":[{"category":"product_version","name":"erlang27-main@x86_64","product":{"name":"erlang27-main@x86_64","product_id":"erlang27-main@x86_64","product_identification_helper":{"purl":"pkg:rpm/redhat/erlang27@27.3.4.15-0.1.hum1?arch=x86_64&distro=hummingbird-20251124&repository_id=public-hummingbird-x86_64-rpms"}}}],"category":"architecture","name":"x86_64"}],"category":"vendor","name":"Red Hat"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"erlang27-main@aarch64 as a component of Red Hat Hardened Images","product_id":"Red Hat Hardened Images:erlang27-main@aarch64"},"product_reference":"erlang27-main@aarch64","relates_to_product_reference":"Red Hat Hardened Images"},{"category":"default_component_of","full_product_name":{"name":"erlang27-main@src as a component of Red Hat Hardened Images","product_id":"Red Hat Hardened Images:erlang27-main@src"},"product_reference":"erlang27-main@src","relates_to_product_reference":"Red Hat Hardened Images"},{"category":"default_component_of","full_product_name":{"name":"erlang27-main@x86_64 as a component of Red Hat Hardened Images","product_id":"Red Hat Hardened Images:erlang27-main@x86_64"},"product_reference":"erlang27-main@x86_64","relates_to_product_reference":"Red Hat Hardened Images"}]},"vulnerabilities":[{"cve":"CVE-2026-59250","cwe":{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"},"discovery_date":"2026-07-27T16:01:52.892629+00:00","ids":[{"system_name":"Red Hat Bugzilla ID","text":"2507559"}],"notes":[{"category":"description","text":"A flaw was found in the Erlang/OTP megaco flex scanner C driver. A remote, unauthenticated attacker can exploit a buffer overflow vulnerability by sending a specially crafted H.248/Megaco message with an oversized property parameter name. This can lead to memory corruption, potentially allowing for remote code execution or causing a denial of service (DoS) crash of the system. Exploitation requires network access to the megaco transport port on systems configured to use the flex scanner.","title":"Vulnerability description"},{"category":"summary","text":"megaco: Erlang/OTP Megaco Flex Scanner: Remote code execution or denial of service via oversized message","title":"Vulnerability summary"},{"category":"general","text":"The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.","title":"CVSS score applicability"}],"product_status":{"fixed":["Red Hat Hardened Images:erlang27-main@aarch64","Red Hat Hardened Images:erlang27-main@src","Red Hat Hardened Images:erlang27-main@x86_64"]},"references":[{"category":"self","summary":"Canonical URL","url":"https://access.redhat.com/security/cve/CVE-2026-59250"},{"category":"external","summary":"RHBZ#2507559","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2507559"},{"category":"external","summary":"https://www.cve.org/CVERecord?id=CVE-2026-59250","url":"https://www.cve.org/CVERecord?id=CVE-2026-59250"},{"category":"external","summary":"https://nvd.nist.gov/vuln/detail/CVE-2026-59250","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59250"},{"category":"external","summary":"https://cna.erlef.org/cves/CVE-2026-59250.html","url":"https://cna.erlef.org/cves/CVE-2026-59250.html"},{"category":"external","summary":"https://github.com/erlang/otp/commit/8704c8f550a11ed5f825e3c011ecb03565b79c4f","url":"https://github.com/erlang/otp/commit/8704c8f550a11ed5f825e3c011ecb03565b79c4f"},{"category":"external","summary":"https://github.com/erlang/otp/security/advisories/GHSA-7xgh-gmgf-q2g7","url":"https://github.com/erlang/otp/security/advisories/GHSA-7xgh-gmgf-q2g7"},{"category":"external","summary":"https://osv.dev/vulnerability/EEF-CVE-2026-59250","url":"https://osv.dev/vulnerability/EEF-CVE-2026-59250"},{"category":"external","summary":"https://www.erlang.org/doc/system/versions.html#order-of-versions","url":"https://www.erlang.org/doc/system/versions.html#order-of-versions"}],"release_date":"2026-07-27T15:25:03.106000+00:00","remediations":[{"category":"vendor_fix","date":"2026-07-28T02:50:00+00:00","details":"For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/","product_ids":["Red Hat Hardened Images:erlang27-main@aarch64","Red Hat Hardened Images:erlang27-main@src","Red Hat Hardened Images:erlang27-main@x86_64"],"url":"https://access.redhat.com/errata/RHSA-2026:47009"}],"scores":[{"cvss_v3":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","version":"3.1"},"products":["Red Hat Hardened Images:erlang27-main@aarch64","Red Hat Hardened Images:erlang27-main@src","Red Hat Hardened Images:erlang27-main@x86_64"]}],"threats":[{"category":"impact","details":"Important","product_ids":["Red Hat Hardened Images:erlang27-main@aarch64","Red Hat Hardened Images:erlang27-main@src","Red Hat Hardened Images:erlang27-main@x86_64"]}],"title":"megaco: Erlang/OTP Megaco Flex Scanner: Remote code execution or denial of service via oversized message"}]}