CVE-2025-23016

EUVD-2025-3075
FastCGI fcgi2 (aka fcgi) 2.x through 2.4.4 has an integer overflow (and resultant heap-based buffer overflow) via crafted nameLen or valueLen values in data to the IPC socket. This occurs in ReadParams in fcgiapp.c.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
mitreCNA
9.3 CRITICAL
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 33%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
fastcgifcgi
2.0.0 ≤
𝑥
≤ 2.4.4
CNA
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
FastCGI
suse enterprise desktop 15 SP6
2.4.0-150000.4.3.1
fixed
suse enterprise desktop 15 SP7
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP3
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP4
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP5
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP6
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP7
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP2
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP3
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP4
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP5
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP6
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP7
2.4.0-150000.4.3.1
fixed
FastCGI-devel
suse enterprise desktop 15 SP6
2.4.0-150000.4.3.1
fixed
suse enterprise desktop 15 SP7
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP3
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP4
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP5
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP6
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP7
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP2
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP3
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP4
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP5
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP6
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP7
2.4.0-150000.4.3.1
fixed
libfcgi0
suse enterprise desktop 15 SP6
2.4.0-150000.4.3.1
fixed
suse enterprise desktop 15 SP7
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP3
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP4
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP5
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP6
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP7
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP2
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP3
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP4
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP5
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP6
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP7
2.4.0-150000.4.3.1
fixed
perl-FastCGI
suse enterprise desktop 15 SP6
2.4.0-150000.4.3.1
fixed
suse enterprise desktop 15 SP7
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP3
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP4
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP5
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP6
2.4.0-150000.4.3.1
fixed
suse enterprise sap 15 SP7
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP2
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP3
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP4
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP5
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP6
2.4.0-150000.4.3.1
fixed
suse enterprise server 15 SP7
2.4.0-150000.4.3.1
fixed
Common Weakness Enumeration
References
https://github.com/FastCGI-Archives/fcgi2/issues/67
https://github.com/FastCGI-Archives/fcgi2/releases/tag/2.4.5
https://www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi-library
http://www.openwall.com/lists/oss-security/2025/04/23/4
https://lists.debian.org/debian-lts-announce/2025/10/msg00009.html
https://www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi-library