CVE-2026-44325

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 69% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NRF root SBI endpoint POST /oauth2/token contains a parser-level type-confusion bug family. The handler in NFs/nrf/internal/sbi/api_accesstoken.go reflects over models.NrfAccessTokenAccessTokenReq, special-cases only plain string and NrfNfManagementNfType fields, and treats every other field as if it were a single models.PlmnId. The parsed *models.PlmnId is then assigned with reflect.Value.Set() to whichever field name the attacker put in the form body, which panics whenever the destination field's real type is incompatible (slice, different struct, primitive). Gin recovery converts each panic into HTTP 500, but the endpoint remains remotely panicable from a single unauthenticated form-encoded request and is repeatedly triggerable. This vulnerability is fixed in 4.2.2.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
31.5%
KEV
Not listed

Published

May 27, 2026

Last Modified

May 28, 2026

Advisory Details (4)

Auto-updated Jun 7, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_pr.
github Patch Available🟡 PoC Available

NRF POST /oauth2/token structured-form parser type-confusion panic family (Reflect.Set on incompatible types) · Advisory · free5gc/free5gc · GitHub

https://github.com/free5gc/free5gc/security/advisories/GHSA-f8qv-7x5w-qr48
github_pr Patch Available

fix: oauth2/token parser reflection panic

Patch available: free5gc/nrf v1.4.3 (PR #83 merged 2026-04-13)

https://github.com/free5gc/nrf/pull/83
github_commit Patch Available

commit f7bc77daa742 (free5gc/nrf)

Patch available: free5gc/nrf v1.4.3 (contains commit f7bc77daa742)

https://github.com/free5gc/nrf/commit/f7bc77daa7425506af7569f2e61c2a210f5a0423
generic

[Bugs] NRF POST /oauth2/token structured-form parser panic DoS family · Issue #918 · free5gc/free5gc · GitHub

https://github.com/free5gc/free5gc/issues/918

Vendor Advisories for CVE-2026-44325(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/free5gc/nrf—1.4.3—

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 57× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 103 total refreshes for this CVE.

  1. 2026-07-12 05:46 UTCEPSS rescore
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-44325?
CVE-2026-44325 is a high vulnerability published on May 27, 2026. free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NRF root SBI endpoint POST /oauth2/token contains a parser-level type-confusion bug family. The handler in NFs/nrf/internal/sbi/api_accesstoken.go reflects over models.NrfAccessTokenAccessTokenReq,…
When was CVE-2026-44325 disclosed?
CVE-2026-44325 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on May 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44325 actively exploited?
CVE-2026-44325 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-44325?
CVE-2026-44325 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-44325?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44325, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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