An out-of-bounds memory access vulnerability in the N2 SCTP interface of OpenAirInterface (OAI) CN5G AMF v2.2.1 allows an unauthenticated…
Affects OAI CN5G AMF v2.2.1 with its N2 SCTP interface listening on port 38412. No vendor rating or fixed version is listed in the checked facts.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Exploited
- No known exploitation
- Fix
- No fix listed
- Who is exposed
- Not reported
Do first: Workaround: The checked facts give no workaround. The only interface they name is the AMF N2 SCTP listener on port 38412, so that is the interface to review while waiting for a fix.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 12/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Unclear
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
OpenAirInterface (OAI) CN5G AMF, a 5G core network component that handles the N2 SCTP interface, is affected by this vulnerability. An unauthenticated remote attacker could repeatedly establish SCTP associations to crash the process, causing a denial of service.
Read the original description
An out-of-bounds memory access vulnerability in the N2 SCTP interface of OpenAirInterface (OAI) CN5G AMF v2.2.1 allows an unauthenticated remote attacker to cause a denial of service (DoS) by repeatedly establishing SCTP associations, resulting in a process crash due to improper file descriptor bounds checking in the FD_SET() operation.
What to do
Workaround: The checked facts give no workaround. The only interface they name is the AMF N2 SCTP listener on port 38412, so that is the interface to review while waiting for a fix.
Timeline
- CVE published
- Record last updated
- First seen by cve.now
Evidence 2
- Repository
- Link
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-117067
What does this mean?
An out-of-bounds memory access in the N2 SCTP interface of the OpenAirInterface AMF lets an unauthenticated remote party cause a denial of service. The AMF process crashes, and the N2/NGAP control-plane interface becomes unavailable.Source: gist.github.com, github.com
Am I affected, and how do I check?
The checked facts name OpenAirInterface Core Network (CN5G AMF) v2.2.1. The affected interface is the AMF N2 SCTP interface on port 38412, so check the AMF version and whether that interface is listening.Source: gist.github.com, github.com
What should I do about it?
The checked facts do not name a fixed version or an upgrade target. Check the OpenAirInterface advisory for a patched release before changing anything.Source: gist.github.com, github.com
Is it being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
What if there's no patch?
The checked facts give no workaround. The only interface they name is the AMF N2 SCTP listener on port 38412, so that is the interface to review while waiting for a fix.Source: gist.github.com, github.com