| Title | RICOH SP 221 V1.02 Denial of Service |
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| Description | An HTTP multipart/form-data parser in the analyzed RICOH SP 221 firmware enters an infinite loop when a multipart part header is not terminated by a newline. After the parser fails to find the expected newline, it returns to the same loop with an unchanged input cursor. A malformed HTTP request can therefore keep the HTTP request-processing task executing indefinitely and cause a denial of service. |
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| Source | ⚠️ https://github.com/xiaobor123/vuls-find-VxWorks/tree/main/RICOH/01-SP221-multipart-parser-infinite-loop |
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| User | xiaobor123 (UID 76914) |
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| Submission | 08/13/2026 13:20 (2 months ago) |
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| Moderation | 09/27/2026 16:33 (2 months later) |
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| Status | Duplicate |
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| VulDB entry | 410908 [Ricoh SP 330DN/SP 221/SP C252SF//Aficio SP 3500SF up to 20260813 HTTP Multipart Form-Data Parser denial of service] |
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| Points | 0 |
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