Description
Open5GS MME versions <= 2.6.4 contain a buffer overflow in the ASN.1 deserialization function of the S1AP handler. This buffer overflow causes type confusion in decoded fields, leading to invalid parsing and freeing of memory. An attacker may use this to crash an MME or potentially execute code in certain circumstances.
Scores
CVSS v3
5.3
EPSS
0.0009
EPSS Percentile
25.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-617
Status
published
Products (1)
open5gs/open5gs
< 2.6.4
Published
Jan 22, 2025
Tracked Since
Feb 18, 2026