| Title | Netcore NR268 Router NR268-V1.7.121109.bin Out-of-Bounds Read |
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| Description | filter_arp_put_file_cgi reads raw upload chunks into a stack buffer and then passes them to fprintf(stderr, "%s") and fputs(). A NUL-free 1024-byte chunk makes both string APIs walk past the received data into adjacent stack memory, leaking bytes into logs and the imported /tmp/filter_arp_file contents. An authenticated attacker who posts a multipart file named put_file can force this over-read on /router/filter_arp_put_file.cgi without any terminator at the end of the received chunk. |
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| Source | ⚠️ https://github.com/draw-ctf/report/blob/main/NR268/2026.09.14-netcore-nr268-arp-import-overread.md |
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| User | nebula (UID 101212) |
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| Submission | 09/14/2026 10:12 (2 months ago) |
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| Moderation | 10/11/2026 16:55 (27 days later) |
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| Status | Accepted |
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| VulDB entry | 416700 [Netcore NR268 1.7.121109 filter_arp_put_file.cgi filter_arp_put_file_cgi put_file out-of-bounds] |
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| Points | 20 |
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