CVE-2026-9500 (GCVE-0-2026-9500)
Vulnerability from cvelistv5 – Published: 2026-05-25 20:15 – Updated: 2026-05-26 12:54 X_Open Source
VLAI
Title
GNU LibreDWG Dwgread Utility decode.c read_2004_compressed_section heap-based overflow
Summary
A vulnerability was found in GNU LibreDWG up to 0.14. The affected element is the function read_2004_compressed_section of the file src/decode.c of the component Dwgread Utility. Performing a manipulation results in heap-based buffer overflow. The attack is only possible with local access. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/365482 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/365482/cti | signaturepermissions-required |
| https://vuldb.com/submit/814248 | third-party-advisory |
| https://github.com/LibreDWG/libredwg/issues/1241 | issue-tracking |
| https://github.com/HackC0der/CVE-Repos/blob/main/… | exploit |
| https://www.gnu.org/ | product |
Impacted products
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-9500",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-26T12:54:53.894529Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-26T12:54:56.758Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/LibreDWG/libredwg/issues/1241"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:gnu:libredwg:*:*:*:*:*:*:*:*"
],
"modules": [
"Dwgread Utility"
],
"product": "LibreDWG",
"vendor": "GNU",
"versions": [
{
"status": "affected",
"version": "0.1"
},
{
"status": "affected",
"version": "0.2"
},
{
"status": "affected",
"version": "0.3"
},
{
"status": "affected",
"version": "0.4"
},
{
"status": "affected",
"version": "0.5"
},
{
"status": "affected",
"version": "0.6"
},
{
"status": "affected",
"version": "0.7"
},
{
"status": "affected",
"version": "0.8"
},
{
"status": "affected",
"version": "0.9"
},
{
"status": "affected",
"version": "0.10"
},
{
"status": "affected",
"version": "0.11"
},
{
"status": "affected",
"version": "0.12"
},
{
"status": "affected",
"version": "0.13"
},
{
"status": "affected",
"version": "0.14"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "pwn3rd (VulDB User)"
},
{
"lang": "en",
"type": "coordinator",
"value": "VulDB CNA Team"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was found in GNU LibreDWG up to 0.14. The affected element is the function read_2004_compressed_section of the file src/decode.c of the component Dwgread Utility. Performing a manipulation results in heap-based buffer overflow. The attack is only possible with local access. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 4.8,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 4.3,
"vectorString": "AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-122",
"description": "Heap-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "Memory Corruption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-25T20:15:11.726Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-365482 | GNU LibreDWG Dwgread Utility decode.c read_2004_compressed_section heap-based overflow",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/365482"
},
{
"name": "VDB-365482 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/365482/cti"
},
{
"name": "Submit #814248 | LibreDWG Project LibreDWG \u003c= 0.14, main branch up to commit 6d6a339 (released 2026-04-10) Heap-based Buffer Overflow (CWE-122)",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/814248"
},
{
"tags": [
"issue-tracking"
],
"url": "https://github.com/LibreDWG/libredwg/issues/1241"
},
{
"tags": [
"exploit"
],
"url": "https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_oob_write_read_2004_compressed_section.dwg"
},
{
"tags": [
"product"
],
"url": "https://www.gnu.org/"
}
],
"tags": [
"x_open-source"
],
"timeline": [
{
"lang": "en",
"time": "2026-05-25T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-05-25T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-05-25T12:09:49.000Z",
"value": "VulDB entry last update"
}
],
"title": "GNU LibreDWG Dwgread Utility decode.c read_2004_compressed_section heap-based overflow"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-9500",
"datePublished": "2026-05-25T20:15:11.726Z",
"dateReserved": "2026-05-25T10:03:48.361Z",
"dateUpdated": "2026-05-26T12:54:56.758Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-9500",
"date": "2026-05-26",
"epss": "0.00013",
"percentile": "0.02125"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-9500\",\"sourceIdentifier\":\"cna@vuldb.com\",\"published\":\"2026-05-25T21:16:35.680\",\"lastModified\":\"2026-05-26T19:54:40.357\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability was found in GNU LibreDWG up to 0.14. The affected element is the function read_2004_compressed_section of the file src/decode.c of the component Dwgread Utility. Performing a manipulation results in heap-based buffer overflow. The attack is only possible with local access. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":1.9,\"baseSeverity\":\"LOW\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"LOW\",\"vulnIntegrityImpact\":\"LOW\",\"vulnAvailabilityImpact\":\"LOW\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"PROOF_OF_CONCEPT\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":1.8,\"impactScore\":3.4}],\"cvssMetricV2\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:S/C:P/I:P/A:P\",\"baseScore\":4.3,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.1,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-119\"},{\"lang\":\"en\",\"value\":\"CWE-122\"}]}],\"references\":[{\"url\":\"https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_oob_write_read_2004_compressed_section.dwg\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://github.com/LibreDWG/libredwg/issues/1241\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/submit/814248\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/vuln/365482\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/vuln/365482/cti\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://www.gnu.org/\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://github.com/LibreDWG/libredwg/issues/1241\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-9500\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-26T12:54:53.894529Z\"}}}], \"references\": [{\"url\": \"https://github.com/LibreDWG/libredwg/issues/1241\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-26T12:54:40.880Z\"}}], \"cna\": {\"tags\": [\"x_open-source\"], \"title\": \"GNU LibreDWG Dwgread Utility decode.c read_2004_compressed_section heap-based overflow\", \"credits\": [{\"lang\": \"en\", \"type\": \"reporter\", \"value\": \"pwn3rd (VulDB User)\"}, {\"lang\": \"en\", \"type\": \"coordinator\", \"value\": \"VulDB CNA Team\"}], \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 4.8, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P\"}}, {\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R\"}}, {\"cvssV3_0\": {\"version\": \"3.0\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R\"}}, {\"cvssV2_0\": {\"version\": \"2.0\", \"baseScore\": 4.3, \"vectorString\": \"AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR\"}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:gnu:libredwg:*:*:*:*:*:*:*:*\"], \"vendor\": \"GNU\", \"modules\": [\"Dwgread Utility\"], \"product\": \"LibreDWG\", \"versions\": [{\"status\": \"affected\", \"version\": \"0.1\"}, {\"status\": \"affected\", \"version\": \"0.2\"}, {\"status\": \"affected\", \"version\": \"0.3\"}, {\"status\": \"affected\", \"version\": \"0.4\"}, {\"status\": \"affected\", \"version\": \"0.5\"}, {\"status\": \"affected\", \"version\": \"0.6\"}, {\"status\": \"affected\", \"version\": \"0.7\"}, {\"status\": \"affected\", \"version\": \"0.8\"}, {\"status\": \"affected\", \"version\": \"0.9\"}, {\"status\": \"affected\", \"version\": \"0.10\"}, {\"status\": \"affected\", \"version\": \"0.11\"}, {\"status\": \"affected\", \"version\": \"0.12\"}, {\"status\": \"affected\", \"version\": \"0.13\"}, {\"status\": \"affected\", \"version\": \"0.14\"}]}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-05-25T00:00:00.000Z\", \"value\": \"Advisory disclosed\"}, {\"lang\": \"en\", \"time\": \"2026-05-25T02:00:00.000Z\", \"value\": \"VulDB entry created\"}, {\"lang\": \"en\", \"time\": \"2026-05-25T12:09:49.000Z\", \"value\": \"VulDB entry last update\"}], \"references\": [{\"url\": \"https://vuldb.com/vuln/365482\", \"name\": \"VDB-365482 | GNU LibreDWG Dwgread Utility decode.c read_2004_compressed_section heap-based overflow\", \"tags\": [\"vdb-entry\", \"technical-description\"]}, {\"url\": \"https://vuldb.com/vuln/365482/cti\", \"name\": \"VDB-365482 | CTI Indicators (IOB, IOC, IOA)\", \"tags\": [\"signature\", \"permissions-required\"]}, {\"url\": \"https://vuldb.com/submit/814248\", \"name\": \"Submit #814248 | LibreDWG Project LibreDWG \u003c= 0.14, main branch up to commit 6d6a339 (released 2026-04-10) Heap-based Buffer Overflow (CWE-122)\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://github.com/LibreDWG/libredwg/issues/1241\", \"tags\": [\"issue-tracking\"]}, {\"url\": \"https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_oob_write_read_2004_compressed_section.dwg\", \"tags\": [\"exploit\"]}, {\"url\": \"https://www.gnu.org/\", \"tags\": [\"product\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability was found in GNU LibreDWG up to 0.14. The affected element is the function read_2004_compressed_section of the file src/decode.c of the component Dwgread Utility. Performing a manipulation results in heap-based buffer overflow. The attack is only possible with local access. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-122\", \"description\": \"Heap-based Buffer Overflow\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-119\", \"description\": \"Memory Corruption\"}]}], \"providerMetadata\": {\"orgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"shortName\": \"VulDB\", \"dateUpdated\": \"2026-05-25T20:15:11.726Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-9500\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-26T12:54:56.758Z\", \"dateReserved\": \"2026-05-25T10:03:48.361Z\", \"assignerOrgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"datePublished\": \"2026-05-25T20:15:11.726Z\", \"assignerShortName\": \"VulDB\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…