Description
Buffer Overflow vulnerability in Open5GS v2.7.7 allows a remote attacker to cause a denial of service via the ogs_sbi_time_parse() function
References6
- gist.github.com/hackeryounow/c299d593b89fd6487cab4182c8aecabf
- github.com/hackeryounow/5GCVulDB/blob/main/smf_crash_uelocation…
- github.com/hackeryounow/5GCVulDB/tree/main/CVE-2026-75438
- github.com/open5gs/open5gs/commit/7227b2f5b254160286798e058c189…
- github.com/open5gs/open5gs/issues/4612
- github.com/open5gs/open5gs/issues/4612
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 1% percentile: 58 · as of 7 November 2026
- CWE
- CWE-120
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.