CVE-2023-47347 Integer overflow in n/a
Attackers can cause denial of service in free5gc by sending crafted PFCP messages with mutated sequence numbers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-47347?
CVE-2023-47347 is a high-severity vulnerability in Free5gc Free5gc, published on 15 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Buffer Overflow vulnerability in free5gc 3.3.0 allows attackers to cause a denial of service via crafted PFCP messages whose Sequence Number is mutated to overflow bytes.
Weakness: CWE-120
Which versions are affected by CVE-2023-47347?
It affects 1 product.
Products include Free5gc Free5gc.
How do I fix CVE-2023-47347?
No fix has been published for CVE-2023-47347 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-47347 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-47347 exists.
Other vulnerabilities in Free5gc Free5gc
- CVE-2026-44327 free5GC: NEF nnef-oam route group is unauthenticated; no-token requests reach the OAM handler
- CVE-2026-44329 free5GC's SMF UPI management interface lacks auth middleware; unauthenticated topology read/write requests reach handlers
- CVE-2026-44330 free5GC's NEF nnef-pfdmanagement API is unauthenticated; forged bearer tokens can read PFD data and create/delete PFD subscriptions
- CVE-2025-63679 Memory corruption in n/a
- CVE-2026-44315 free5GC's NEF 3gpp-pfd-management API is unauthenticated; forged bearer tokens can create, read, and delete PFD transactions
Sources
Also known as GHSA-ggpj-rxm8-6gjv.