CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. On top of that, the DELETE /upi/v1/upNodesLinks/{upNodeRef} handler unconditionally dereferences upNode.UPF after the type-guarded async release, even though AN-typed nodes are constructed without a UPF object. As a result, a single unauthenticated DELETE /upi/v1/upNodesLinks/gNB1 request crashes the handler with a nil-pointer panic AND mutates the in-memory user-plane topology before panicking (the UpNodeDelete(upNodeRef) line runs first). This is an unauthenticated, state-mutating panic-DoS sink that an off-path network attacker can trigger by name against any AN entry. This vulnerability is fixed in 4.2.2.
Засегнати продукти
- free5gc free5gc: < 4.2.2
Вид слабост
История
- 27 май 2026 Публикувано
Други уязвимости в free5gc free5gc
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-44328
- https://nvd.nist.gov/vuln/detail/CVE-2026-44328
- https://github.com/free5gc/free5gc/security/advisories/GHSA-p9mg-74mg-cwwr
- https://github.com/free5gc/free5gc/issues/905
- https://github.com/free5gc/smf/pull/199
- https://github.com/free5gc/smf/commit/b57bc48081c3d3a2f333d02eb78e4fd31a120deb