CVE-2026-15720 json
Pre-auth heap out-of-bounds read in the AMF NAS 5GS mobile-identity handler
published 2026-07-14 3 mo ago modified 2026-07-15 3 mo ago also EUVD-2026-44343
- cvss
- 8.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
In Open5GS through version 2.7.7 a pre-authentication heap out-of-bounds read in the AMF NAS 5GS mobile-identity handler may result in subscriber-wide denial of service.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/open5gs/open5gs/security/advisories/GHSA-f4mx-3x6p-cfwp referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
Affected products
- open5gs open5gs
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
github.com
/open5gs/open5gs/security/advisories/GHSA-f4mx-3x6p-cfwp
vendor-advisory, exploit
Sources
- CVE List CVE-2026-15720
- NVD CVE-2026-15720
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.