CVE-2025-44952

A missing length check in `ogs_pfcp_subnet_add` function from PFCP library, used by both smf and upf in open5gs 2.7.2 and earlier, allows a local attacker to cause a Buffer Overflow by changing the `session.dnn` field with a value with length greater than 101.
Classic Buffer Overflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CISA-ADPADP
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 4%
VendorProductVersion
open5gsopen5gs
𝑥
≤ 2.7.2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://gist.github.com/scemodicecosa/8643fbfc9490f40e955e9f9e9b0d9077
https://gist.github.com/scmdcs/8643fbfc9490f40e955e9f9e9b0d9077
https://github.com/open5gs/open5gs/issues/3775