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.
References
Configurations
History
04 Jun 2026, 14:23
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Swupdate swupdate
Swupdate |
|
| CPE | cpe:2.3:a:swupdate:swupdate:*:*:*:*:*:*:*:* | |
| References | () https://github.com/sbabic/swupdate/commit/beee2dc0feef1cfe84f1aa6fc980e104b2e47a74 - Patch | |
| References | () https://www.vulncheck.com/advisories/swupdate-integer-underflow-in-multipart-upload-parser - Third Party Advisory |
26 May 2026, 00:16
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | (en) 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. |
23 Apr 2026, 21:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-23 21:16
Updated : 2026-07-14 19:16
NVD link : CVE-2026-28525
Mitre link : CVE-2026-28525
CVE.ORG link : CVE-2026-28525
JSON object : View
Products Affected
swupdate
- swupdate