cvedb.io
CVE-2026-28525
MEDIUM · CVSS 6.8
EPSS exploitation probability: 0%
Published 2026-04-23T21:16:05.367 · Last modified 2026-06-17T10:28:47.750

Summary

SWUpdate contains an integer underflow vulnerability in the multipart upload parser in mongoose_multipart.c that allows unauthenticated attackers to cause a denial of service by sending a crafted HTTP POST request to /upload with a malformed multipart boundary and controlled TCP stream timing. Attackers can trigger an integer underflow in the mg_http_multipart_continue_wait_for_chunk() function when the buffer length falls within a specific range, causing an out-of-bounds heap read past the allocated receive buffer to a local IPC socket.

Affected products

swupdate — swupdate

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.