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[Japanese]
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JVNDB-2026-000152
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UnRTF vulnerable to out-of-bounds write
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UnRTF by GNU Project contains the following vulnerability:- Out-of-bounds Write (CWE-787) - CVE-2026-109831
Naoki Wakamatsu reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
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CVSS V3 Severity:
Base Metrics 5.4 (Medium) [IPA Score]
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Confidentiality Impact: None
- Integrity Impact: Low
- Availability Impact: Low
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CVSS v4 Severity
Base Metrics: 5.1 (Medium) [IPA Score]
- Access Vector (AV): Network
- Attack Complexity (AC): Low
- Attack Requirements (AT): None
- Privileges Required (PR): None
- User Interaction (UI): Active
Vulnerable System Impact
- Confidentiality Impact (VC): None
- Integrity Impact (VI): Low
- Availability Impact (VA): Low
Subsequent System Impact
- Confidentiality Impact (SC): None
- Integrity Impact (SI): None
- Availability Impact (SA): None
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GNU Project
- UnRTF versions prior to 0.21.12
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If a user opens an RTF file crafted by an attacker, it may lead to a denial-of-service (DoS) condition.
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[Update the software]
Update the software to the latest version according to the information provided by the developer.
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GNU Project
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- No Mapping(CWE-Other) [IPA Evaluation]
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- CVE-2026-109831
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- JVN : JVN#29783594
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- [2026/10/20]
Web page was published
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