{"id":86884,"date":"2026-04-06T16:17:22","date_gmt":"2026-04-06T16:17:22","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T06:00:00","slug":"cve-2025-57803-heap-memory-corruption-vulnerability-in-imagemagick","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-57803-heap-memory-corruption-vulnerability-in-imagemagick\/","title":{"rendered":"<strong>CVE-2025-57803: Heap Memory Corruption Vulnerability in ImageMagick<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The vulnerability identified as CVE-2025-57803 presents a significant risk to users of ImageMagick, a widely used open-source software for editing and manipulating digital images. The flaw can lead to potential system compromise or data leakage, affecting versions of ImageMagick prior to 6.9.13-28 and 7.1.2-2 for the 32-bit build.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-57803<br \/>\nSeverity: High (7.5 CVSS score)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: No<br \/>\nImpact: System Compromise, Information Disclosure<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3895354044\" class=\"ameeb-content-2 ameeb-entity-placement\"><div style=\"border-left: 4px solid #555; padding-left: 20px; margin: 48px 0; font-family: Roboto, sans-serif; color: #ffffff; line-height: 1.6; max-width: 700px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 20px; font-weight: 600; display: flex; align-items: center;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 8px;\">\r\n      <img decoding=\"async\" src=\"https:\/\/www.ameeba.com\/blog\/wp-content\/uploads\/2025\/10\/Best-App-icon-Ameeba.png\" alt=\"Ameeba Chat Icon\" style=\"width: 40px; height: 40px;\" \/>\r\n    <\/a>\r\n    A new way to communicate\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 12px;\">\r\n    Ameeba Chat is built on encrypted identity, not personal profiles.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 16px;\">\r\n    Message, call, share files, and coordinate with identities kept separate.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 20px;\">\r\n    <li>\u2022 Encrypted identity<\/li>\r\n    <li>\u2022 Ameeba Chat authenticates access<\/li>\r\n    <li>\u2022 Aliases and categories<\/li>\r\n    <li>\u2022 End-to-end encrypted chat, calls, and files<\/li>\r\n    <li>\u2022 Secure notes for sensitive information<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px;\">\r\n    Private communication, rethought.\r\n  <\/p>\r\n\r\n  <div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\/download\" style=\"background-color: #ffffff; color: #000000; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Download Ameeba Chat<\/a>\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Learn More<\/a>\r\n  <\/div>\r\n<\/div>\r\n<\/div>\n<p>Product | Affected Versions<\/p>\n<p>ImageMagick | Prior to 6.9.13-28<br \/>\nImageMagick | Prior to 7.1.2-2<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit is based on a 32-bit integer overflow in ImageMagick&#8217;s BMP encoder\u2019s scanline-stride computation. This overflow results in the collapse of bytes_per_line (stride) to a very small value. However, the per-row writer still emits 3 \u00d7 width bytes for 24-bpp images. Consequently, the row base pointer advances using the overflowed stride. This leads to the first row immediately writing past its allocated heap memory and overwriting adjacent heap memory with attacker-controlled bytes. This sort of heap corruption is a common and potent attack vector in common auto-convert pipelines.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3831677931\" class=\"ameeb-content ameeb-entity-placement\"><div class=\"poptin-embedded\" data-id=\"f6b387694f681\"><\/div>\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\n<p>While actual exploit code isn&#8217;t available, an attacker might exploit the vulnerability by providing a specially crafted BMP image that triggers the integer overflow. The following pseudocode illustrates this concept:<\/p>\n<pre><code class=\"\" data-line=\"\">Create BMP image with width that triggers integer overflow\nEmbed malicious payload in image data\nUpload or submit image to ImageMagick processing pipeline<\/code><\/pre>\n<p>Upon successful exploitation, an attacker could potentially execute arbitrary code or cause information disclosure. Immediate patching or use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) could serve as temporary mitigation measures. However, upgrading to a non-vulnerable version of ImageMagick is highly recommended.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The vulnerability identified as CVE-2025-57803 presents a significant risk to users of ImageMagick, a widely used open-source software for editing and manipulating digital images. The flaw can lead to potential system compromise or data leakage, affecting versions of ImageMagick prior to 6.9.13-28 and 7.1.2-2 for the 32-bit build. Vulnerability Summary CVE ID: CVE-2025-57803 Severity: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86884","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/86884","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/comments?post=86884"}],"version-history":[{"count":0,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/86884\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=86884"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=86884"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=86884"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=86884"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=86884"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=86884"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=86884"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=86884"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=86884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}