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CVE-2026-33283

25
FAUCET Score

CVE-2026-33283 impacts Ella Core versions prior to 1.6.0, a 5G core solution for private networks. The vulnerability allows an unauthenticated attacker to trigger a denial-of-service condition by sending specially crafted UL NAS Transport NAS messages that lack a Request Type. This causes the Ella Core process to panic and crash, resulting in service disruption for all connected subscribers. Rated with a CVSS score of 7.5 (High), the attack requires no authentication and has a low attack complexity. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion regarding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.6.0CPE matchmatch criteria
cpe:2.3:a:ellanetworks:ella_core:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.36%
Probability of exploitation in next 30 days
EPSS Percentile
29.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 10th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

gopatch availablevia ghsa
Product: github.com/ellanetworks/coreFixed in: 1.6.0
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

goGHSA-3366-gw57-fcm5medium

Ella Core panics on malformed ULNASTransport Message without a Request Type

Mar 19, 2026

References

github.com / ellanetworks/core/security/advisories/GHSA-3366-gw57-fcm5
Vendor Advisory