{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-10921", "assignerOrgId": "99f1926a-a320-47d8-bbb5-42feb611262e", "state": "PUBLISHED", "assignerShortName": "zdi", "dateReserved": "2025-09-24T15:53:45.525Z", "datePublished": "2025-10-29T19:29:39.135Z", "dateUpdated": "2025-10-30T03:56:07.584Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "99f1926a-a320-47d8-bbb5-42feb611262e", "shortName": "zdi", "dateUpdated": "2025-10-29T19:29:39.135Z"}, "title": "GIMP HDR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability", "descriptions": [{"lang": "en", "value": "GIMP HDR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of HDR files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27803."}], "affected": [{"vendor": "GIMP", "product": "GIMP", "versions": [{"version": "3.0.4", "status": "affected"}], "defaultStatus": "unknown"}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-122", "description": "CWE-122: Heap-based Buffer Overflow", "type": "CWE"}]}], "references": [{"url": "https://www.zerodayinitiative.com/advisories/ZDI-25-910/", "name": "ZDI-25-910", "tags": ["x_research-advisory"]}, {"url": "https://gitlab.gnome.org/GNOME/gegl/-/commit/0e68b7471dabf2800d780819c19bd5e6462f565f", "name": "vendor-provided URL", "tags": ["vendor-advisory"]}], "dateAssigned": "2025-09-24T15:53:45.573Z", "datePublic": "2025-09-24T18:19:14.628Z", "source": {"lang": "en", "value": "MICHAEL RANDRIANANTENAINA [https://elkamika.blogspot.com/]"}, "metrics": [{"format": "CVSS", "cvssV3_0": {"version": "3.0", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}}]}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-10-29T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2025-10921"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-30T03:56:07.584Z"}}]}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "GIMP HDR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of HDR files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27803."}], "id": "CVE-2025-10921", "lastModified": "2025-10-30T15:03:13.440", "metrics": {"cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "zdi-disclosures@trendmicro.com", "type": "Secondary"}]}, "published": "2025-10-29T20:15:34.797", "references": [{"source": "zdi-disclosures@trendmicro.com", "url": "https://gitlab.gnome.org/GNOME/gegl/-/commit/0e68b7471dabf2800d780819c19bd5e6462f565f"}, {"source": "zdi-disclosures@trendmicro.com", "url": "https://www.zerodayinitiative.com/advisories/ZDI-25-910/"}], "sourceIdentifier": "zdi-disclosures@trendmicro.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-122"}], "source": "zdi-disclosures@trendmicro.com", "type": "Primary"}]}

{"bugzilla": {"description": "gimp: GIMP HDR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability", "id": "2407194", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2407194"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-122", "details": ["A heap-based buffer-overflow in GIMP\u2019s HDR (RGBE) file parsing (CVE-2025-10921 / ZDI-25-910) allows an attacker to execute arbitrary code when a user opens or is tricked into previewing a malicious HDR file. The flaw is caused by missing length validation before copying user-supplied HDR data into a heap buffer, enabling memory corruption and control of program flow."], "mitigation": {"lang": "en:us", "value": "No mitigation is currently available that meets Red Hat Product Security\u2019s standards for usability, deployment, applicability, or stability."}, "name": "CVE-2025-10921", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "gimp", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "gimp", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "gimp:2.8/gimp", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "gimp", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-10-29T19:29:39Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-10921\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-10921\nhttps://gitlab.gnome.org/GNOME/gegl/-/commit/0e68b7471dabf2800d780819c19bd5e6462f565f\nhttps://www.zerodayinitiative.com/advisories/ZDI-25-910/"], "statement": "This vulnerability is Important because it enables remote code execution in the context of the user\u2019s GIMP process with relatively low prerequisites: an attacker only needs to supply a crafted HDR file and get the victim to open or preview it. Heap overflows in image-parsing code are especially dangerous because image loaders commonly operate on untrusted files and often run in the same process as the application\u2019s UI and plugins; a successful overwrite of heap metadata or adjacent control data can lead to arbitrary instruction-pointer control (RCE). Although exploitation requires user interaction (opening/preview), the attack surface is large (attachments, downloads, web previews) and the payload can execute with the user\u2019s privileges, potentially leading to system compromise or lateral movement if the user has elevated access.", "threat_severity": "Important"}