CVE-2026-90707 Open5GS - Use After Free

Open5GS <= 2.7.x contains a use after free vulnerability caused by manipulation of the discovery_option argument in amf_nnrf_try_old_amf_discovery_fallback function, letting remote attackers cause memory corruption, exploit requires crafted input.

CVSS base score 8.3 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.53% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Use After Free
Impact
Denial Of Service, Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-119

Vendor fix

Apply patch ddd683a35f8aaac2b7b9884a24cd53bddfc65238 or update to a version after 2.7.x.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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