CVE-2022-46143

LOWNVD 2.72.7—

2.7

Affected devices do not check the TFTP blocksize correctly. This could allow an authenticated attacker to read from an uninitialized buffer that potentially contains previously allocated data.

CVSS v3: 2.7
EG Score: 2.7(medium)
EPSS: 65.3%
KEV: Not listed

Published

December 13, 2022

Last Modified

January 14, 2025

References (6)

productcert@siemenshttps://cert-portal.siemens.com/productcert/html/ssa-180704.html
productcert@siemenshttps://cert-portal.siemens.com/productcert/html/ssa-413565.html
productcert@siemenshttps://cert-portal.siemens.com/productcert/pdf/ssa-180704.pdf
productcert@siemenshttps://cert-portal.siemens.com/productcert/pdf/ssa-413565.pdf
af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-180704.pdf
af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-413565.pdf

Weakness Classification(1)

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

CWE-1284Improper Validation of Specified Quantity in Input

Data Freshness Timeline

(refreshed 10× in last 7d / 10× 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 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 10:42 UTCEG score recompute
2026-05-25 10:42 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2022-46143?

CVE-2022-46143 is a low vulnerability published on December 13, 2022. Affected devices do not check the TFTP blocksize correctly. This could allow an authenticated attacker to read from an uninitialized buffer that potentially contains previously allocated data.

When was CVE-2022-46143 disclosed?

CVE-2022-46143 was first published in the National Vulnerability Database on December 13, 2022, with the most recent update on January 14, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-46143 actively exploited?

CVE-2022-46143 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 65.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-46143?

CVE-2022-46143 has a CVSS v3 base score of 2.7 (NVD).

How do I remediate CVE-2022-46143?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-46143, 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-2022-46143

Explore →

Is Your Infrastructure Affected by CVE-2022-46143?

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

Start Free Scan →Browse All CVEs

CVE-2022-46143

📅 Published

🔄 Last Modified

🔗 References (6)