CVE-2023-47345 json
free5gc Buffer Overflow vulnerability
published 2023-11-15 2 y ago modified 2026-06-17 4 mo ago also GHSA-6944-6pmv-6mp2 , EUVD-2023-2897
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 58%
- public exploits
- 0
- none known
Summary
Buffer Overflow vulnerability in free5gc 3.3.0 allows attackers to cause a denial of service via crafted PFCP message with malformed PFCP Heartbeat message whose Recovery Time Stamp IE length is mutated to zero.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.85% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/free5gc/free5gc/issues/483 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/free5gc/free5gc | <=3.3.0 |
no fix listed |
Classification
- Weakness
-
- CWE-120 Buffer Copy without Checking Size of Input
References
-
github.com
/free5gc/free5gc/issues/483
web, exploit, issue-tracking
-
nvd.nist.gov
/vuln/detail/CVE-2023-47345
advisory
-
github.com
/free5gc/free5gc
package
Sources
- CVE List CVE-2023-47345
- GitHub Advisory GHSA-6944-6pmv-6mp2
- NVD CVE-2023-47345
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