CVE-2025-55763: Buffer Overflow in the URI parser of CivetWeb 1.14 through 1.16 (latest) allows a remote attacker to achieve remote code execution via a crafted HTTP request…

PriorityP348high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

1.12%

62.4th percentile

Buffer Overflow in the URI parser of CivetWeb 1.14 through 1.16 (latest) allows a remote attacker to achieve remote code execution via a crafted HTTP request. This vulnerability is triggered during request processing and may allow an attacker to corrupt heap memory, potentially leading to denial of service or arbitrary code execution.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
civetweb_project	civetweb	>= 0 < 1.16+dfsg-2+deb13u1	1.16+dfsg-2+deb13u1
civetweb_project	civetweb	>= 0 < 1.16+dfsg-3	1.16+dfsg-3
civetweb_project	civetweb	1.14 – 1.16	—
debian	civetweb	< civetweb 1.16+dfsg-3 (forky)	civetweb 1.16+dfsg-3 (forky)

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

osv7.5HIGH

vendor_debian7.5HIGH

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