CVE-2025-40907

EUVD-2025-15438
FCGI versions 0.44 through 0.82, for Perl, include a vulnerable version of the FastCGI fcgi2 (aka fcgi) library.

The included FastCGI library is affected by  CVE-2025-23016, causing 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
NISTPrimary
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA-ADPADP
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 49%
Affected Products (NVD)
VendorProductVersion
fastcgifcgi
0.44 ≤
𝑥
≤ 0.82
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
libfcgi-perl
bookworm
0.82+ds-2
fixed
bullseye
0.79+ds-2
fixed
forky
0.82+ds-3
fixed
sid
0.82+ds-3
fixed
trixie
0.82+ds-3
fixed