{"answers":{"affected":"It affects 2 products.","exploited":"Yes. Attackers have exploited CVE-2019-11707 in the wild since at least 23 May 2022.","fix":"Upgrade to a fixed version. US federal agencies must fix it by 13 Jun 2022.","what":"CVE-2019-11707 is a high-severity memory corruption vulnerability in Mozilla Firefox, published on 23 Jul 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2019-11707 and fix it if it is affected.\n\nWhat it is: CVE-2019-11707 is a high-severity memory corruption vulnerability in Mozilla Firefox, published on 23 Jul 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: Yes. Attackers have exploited CVE-2019-11707 in the wild since at least 23 May 2022.\n\nAffected product: Mozilla Firefox. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2019-11707/ (Markdown: https://insights.sbomify.com/CVE-2019-11707/index.md)","id":"CVE-2019-11707","markdown":"https://insights.sbomify.com/CVE-2019-11707/index.md","name":"CVE-2019-11707","record":{"aliases":["ALPINE-CVE-2019-11707","DEBIAN-CVE-2019-11707","DLA-1829-1","DSA-4466-1","GHSA-8ffr-q7j8-h445","MGASA-2019-0198","SUSE-RU-2019:1625-1","SUSE-SU-2019:1629-1","UBUNTU-CVE-2019-11707","USN-4020-1","openSUSE-SU-2019:1593-1"],"analysis":{"component_type":"browser","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Mozilla Firefox","requires_auth":"none","summary":"A type confusion flaw in Firefox and Thunderbird allows attackers to cause crashes and potentially execute arbitrary code via crafted JavaScript.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mozilla","cpe":[{"product":"firefox","vendor":"mozilla"},{"product":"thunderbird","vendor":"mozilla"}],"cvss":{"score":8.8,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-843","name":"Access of Resource Using Incompatible Type"}],"description":"A type confusion vulnerability can occur when manipulating JavaScript objects due to issues in Array.pop. This can allow for an exploitable crash. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR \u003c 60.7.1, Firefox \u003c 67.0.3, and Thunderbird \u003c 60.7.2.","ecosystems":["SUSE:Enterprise Storage 4","SUSE:Linux Enterprise Desktop 12 SP3","SUSE:Linux Enterprise Desktop 12 SP4","SUSE:Linux Enterprise Module for Desktop Applications 15","SUSE:Linux Enterprise Module for Desktop Applications 15 SP1","SUSE:Linux Enterprise Server 12 SP1-LTSS","SUSE:Linux Enterprise Server 12 SP2-BCL","SUSE:Linux Enterprise Server 12 SP2-LTSS","SUSE:Linux Enterprise Server 12 SP3","SUSE:Linux Enterprise Server 12 SP4","SUSE:Linux Enterprise Server 12-LTSS","SUSE:Linux Enterprise Server for SAP Applications 12 SP1","SUSE:Linux Enterprise Server for SAP Applications 12 SP2","SUSE:Linux Enterprise Server for SAP Applications 12 SP3","SUSE:Linux Enterprise Server for SAP Applications 12 SP4","SUSE:Linux Enterprise Software Development Kit 12 SP3","SUSE:Linux Enterprise Software Development Kit 12 SP4","SUSE:OpenStack Cloud 7","openSUSE:Leap 15.0"],"exploits":{"exploitdb":2,"first_seen":"2019-06-26","github_poc":4,"max_poc_stars":42,"metasploit":0,"nuclei":0,"refs":[{"date":"2019-08-18T07:41:01Z","kind":"github_poc","ref":"https://github.com/vigneshsrao/CVE-2019-11707","stars":42,"title":"Exploit code for CVE-2019-11707 on Firefox 66.0.3 running on Ubuntu "},{"date":"2020-04-13T15:11:46Z","kind":"github_poc","ref":"https://github.com/flabbergastedbd/cve-2019-11707","stars":2,"title":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1820"},{"date":"2019-06-26","kind":"exploitdb","ref":"47038","stars":null,"title":"Mozilla Spidermonkey - IonMonkey 'Array.prototype.pop' Type Confusion"},{"date":"2022-02-02","kind":"exploitdb","ref":"50691","stars":null,"title":"Mozilla Firefox 67 - Array.pop JIT Type Confusion"},{"date":"2026-01-29T14:29:45Z","kind":"github_poc","ref":"https://github.com/CosminGGeorgescu/CVE-2019-11707-PoC","stars":0,"title":"Proof of concept for CVE-2019-11707"},{"date":"2026-09-23T03:17:43Z","kind":"github_poc","ref":"https://github.com/G4sp4rCS/CVE-2019-11707-from-an-IonMonkey-type-confusion-to-SYSTEM-","stars":0,"title":"CVE-2019-11707 is a critical type confusion in Firefox's IonMonkey optimizing JIT. The browser bug provides native code execution in the content process, but that process remains constrained by the Firefox sandbox. The complete laboratory chain therefore combines three vulnerabilities:"}],"tier":"exploited"},"has_fix":true,"headline":"Mozilla Firefox and Thunderbird Type Confusion","id":"CVE-2019-11707","indexable":true,"kev":{"dateAdded":"2022-05-23","dueDate":"2022-06-13","knownRansomwareCampaignUse":"Unknown","product":"Firefox and Thunderbird","requiredAction":"Apply updates per vendor instructions.","vendorProject":"Mozilla","vulnerabilityName":"Mozilla Firefox and Thunderbird Type Confusion Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"mozilla:firefox","products":["mozilla:firefox","mozilla:thunderbird"],"type":"memory_corruption","year":"2019"},"n_packages":19,"n_references":4,"next":{"headline":"Mozilla Firefox and Thunderbird Sandbox Escape","id":"CVE-2019-11708"},"packages":[{"ecosystem":"SUSE:Enterprise Storage 4","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Enterprise%20Storage%204","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"SUSE:Linux Enterprise Desktop 12 SP3","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"SUSE:Linux Enterprise Desktop 12 SP4","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Desktop Applications 15","fixed":["60.7.1-3.45.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015","source":"SUSE-SU-2019:1629-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Desktop Applications 15 SP1","fixed":["60.7.1-3.45.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP1","source":"SUSE-SU-2019:1629-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP1-LTSS","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-BCL","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP3","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP4","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12-LTSS","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP1","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP2","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP3","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP4","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"SUSE:Linux Enterprise Software Development Kit 12 SP3","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"SUSE:Linux Enterprise Software Development Kit 12 SP4","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"SUSE:OpenStack Cloud 7","fixed":["60.7.1-109.77.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/suse/MozillaFirefox\u0026distro=SUSE%20OpenStack%20Cloud%207","source":"SUSE-RU-2019:1625-1"},{"ecosystem":"openSUSE:Leap 15.0","fixed":["60.7.2-lp150.3.59.1"],"introduced":["0"],"last_affected":[],"package":"MozillaFirefox","purl":"pkg:rpm/opensuse/MozillaFirefox\u0026distro=openSUSE%20Leap%2015.0","source":"openSUSE-SU-2019:1593-1"}],"prev":{"headline":"Memory corruption in Thunderbird","id":"CVE-2019-11706"},"products":["Firefox","Firefox ESR","Thunderbird"],"published":"2019-07-23","related":[{"cvss_score":10,"headline":"Mozilla Firefox and Thunderbird Sandbox Escape","id":"CVE-2019-11708","kev_date_added":"2022-05-23","published":"2019-07-23"},{"cvss_score":9.8,"headline":"Mozilla Multiple Products Remote Code Execution","id":"CVE-2010-3765","kev_date_added":"2025-10-06","published":"2010-10-27"},{"cvss_score":9.6,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2022-26486","kev_date_added":"2022-03-07","published":"2022-12-22"},{"cvss_score":8.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2022-26485","kev_date_added":"2022-03-07","published":"2022-12-22"},{"cvss_score":8.1,"headline":"Mozilla Firefox And Thunderbird Use-After-Free","id":"CVE-2020-6819","kev_date_added":"2021-11-03","published":"2020-04-24"},{"cvss_score":8.1,"headline":"Mozilla Firefox And Thunderbird Use-After-Free","id":"CVE-2020-6820","kev_date_added":"2021-11-03","published":"2020-04-24"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["Mozilla"]},"summary":"A type confusion flaw in Firefox and Thunderbird allows attackers to cause crashes and potentially execute arbitrary code via crafted JavaScript.","url":"https://insights.sbomify.com/CVE-2019-11707/"}