CVE-2021-45462

HIGHNVD 7.57.5—

7.5

In Open5GS 2.4.0, a crafted packet from UE can crash SGW-U/UPF.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 50.7%
KEV: Not listed

Published

December 23, 2021

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://github.com/open5gs/open5gs/commit/a0f2535cb5a29bba6dbbccdb90c74ccd770cc700
cve@mitrehttps://www.trendmicro.com/en_us/research/23/i/attacks-on-5g-infrastructure-from-users-devices.html
af854a3a-2127-422b-91ae-364da2661108https://github.com/open5gs/open5gs/commit/a0f2535cb5a29bba6dbbccdb90c74ccd770cc700
af854a3a-2127-422b-91ae-364da2661108https://www.trendmicro.com/en_us/research/23/i/attacks-on-5g-infrastructure-from-users-devices.html

Weakness Classification(2)

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

Data Freshness Timeline

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

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 05:52 UTCEG score recompute
2026-05-26 05:52 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-45462?

CVE-2021-45462 is a high vulnerability published on December 23, 2021. In Open5GS 2.4.0, a crafted packet from UE can crash SGW-U/UPF.

When was CVE-2021-45462 disclosed?

CVE-2021-45462 was first published in the National Vulnerability Database on December 23, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-45462 actively exploited?

CVE-2021-45462 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 50.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-45462?

CVE-2021-45462 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2021-45462?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-45462, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-45462

Explore →

Is Your Infrastructure Affected by CVE-2021-45462?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2021-45462

📅 Published

🔄 Last Modified

🔗 References (4)