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. 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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
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CISA-ADPADP
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 87%
VendorProductVersion
civetweb_projectcivetweb
1.14 ≤
𝑥
≤ 1.16
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
civetweb
bullseye
postponed
trixie
no-dsa
bookworm
no-dsa
forky
1.16+dfsg-3
fixed
sid
1.16+dfsg-3
fixed
Common Weakness Enumeration
References
https://github.com/civetweb/civetweb
https://github.com/krispybyte/CVE-2025-55763