{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-62821 exists.","fix":"No fix has been published for CVE-2025-62821 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-62821 is a critical memory corruption vulnerability in n/a, published on 19 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-62821 and fix it if it is affected.\n\nWhat it is: CVE-2025-62821 is a critical memory corruption vulnerability in n/a, published on 19 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-62821 exists.\n\nAffected product: n/a. 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-2025-62821/ (Markdown: https://insights.sbomify.com/CVE-2025-62821/index.md)","id":"CVE-2025-62821","markdown":"https://insights.sbomify.com/CVE-2025-62821/index.md","name":"CVE-2025-62821","record":{"aliases":["GHSA-4qq3-gjhp-4grf"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["denial_of_service","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"HEIF Image Extensions","requires_auth":"none","summary":"An out-of-bounds read in Microsoft HEIF Image Extensions allows attackers to cause denial of service or disclose information via crafted images.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"heif_image_extension","vendor":"microsoft"}],"cvss":{"score":9.1,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"Microsoft HEIF Image Extensions 1.2.22.0 has an out-of-bounds read because CHEIFItemInfoEntry_GetDataSize can return success while leaving the reported data size as 0. This causes a caller to make a 1-byte allocation. Later, CopyPixels computes copy_size = stride * abs(roi_height) but does not check the source buffer length before a memmove call.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2025-09-25","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2025-09-25T01:47:36Z","kind":"github_poc","ref":"https://github.com/hyunjungg/CVE-2025-62821","stars":0,"title":"Microsoft HEIF Extension (msheif_store.dll) OOB-read"}],"tier":"weaponised"},"has_fix":null,"headline":"Memory corruption in n/a","id":"CVE-2025-62821","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2025"},"n_packages":0,"n_references":1,"next":{"headline":"Other in FortiOS","id":"CVE-2025-62826"},"packages":[],"prev":{"headline":"Slack Nebula may accept arbitrary source IP addresses","id":"CVE-2025-62820"},"products":["n/a"],"published":"2026-06-19","related":[{"cvss_score":7.8,"headline":"HEIF Image Extensions Remote Code Execution Vulnerability","id":"CVE-2026-81353","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":7.8,"headline":"HEIF Image Extensions Remote Code Execution Vulnerability","id":"CVE-2022-24457","kev_date_added":null,"published":"2022-03-09"},{"cvss_score":7.8,"headline":"HEIF Image Extensions Remote Code Execution Vulnerability","id":"CVE-2020-17101","kev_date_added":null,"published":"2020-11-11"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-22","vendors":["n/a"]},"summary":"An out-of-bounds read in Microsoft HEIF Image Extensions allows attackers to cause denial of service or disclose information via crafted images.","url":"https://insights.sbomify.com/CVE-2025-62821/"}