CVE-2026-33282: Ella Core panics on malformed NGAP Location Report
Vulnerability summary
CVE-2026-33282 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in ellanetworks core. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 35.4% of scored vulnerabilities.
Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 0% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 23-03-2026PublishedVulnerability first disclosed.
- 25-03-2026Last modifiedVulnerability information updated.
Description
Ella Core is a 5G core designed for private networks. Versions prior to 1.6.0 panic when processing a malformed NGAP LocationReport message with `ue-presence-in-area-of-interest` event type and omitting the optional `UEPresenceInAreaOfInterestList` IE. An attacker able to send crafted NGAP messages to Ella Core can crash the process, causing service disruption for all connected subscribers. No authentication is required. Version 1.6.0 added IE presence verification to NGAP message handling.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · GoEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
35%
Versus all other CVEs
30-day change
Decrease -0.13 pp
From 0.54% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Github.com/ellanetworks1 product
- core< 1.6.0
2 vendors · 3 products
References
3 links- github.com/ellanetworks/core/security/advisories/GHSA-826q-wrq4-p23xX Refsource CONFIRMWEBAdvisoryVendor Advisory
- github.com/ellanetworks/corePACKAGE