CVE-2022-45477

CRITICALNVD 9.89.8—Elevated

9.8

Telepad allows remote unauthenticated users to send instructions to the server to execute arbitrary code without any previous authorization or authentication. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 93.0%
KEV: Not listed

Published

December 5, 2022

Last Modified

April 24, 2025

Advisory Details (1)

Auto-updated May 28, 2026

No patch confirmed yet.

generic

CyRC Advisory: Mouse & Keyboard App Vulnerabilities | Black Duck Blog

https://www.synopsys.com/blogs/software-security/cyrc-advisory-remote-code-execution-vulnerabilities-mouse-keyboard-apps/

Weakness Classification(1)

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

CWE-306Missing Authentication for Critical Function

Data Freshness Timeline

(refreshed 8× in last 7d / 20× 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.

2026-06-04 13:11 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
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 11:14 UTCEG score recompute
2026-05-25 11:14 UTCGHSA enrichment

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

GitHub PoCM507/nmap-vulnerability-scan-scripts
First seen Feb 26, 2023
nmap detection scripts for CVE-2022-45477, CVE-2022-45479, CVE-2022-45482, CVE-2022-45481
Open source ↗

Frequently asked(5)

What is CVE-2022-45477?

CVE-2022-45477 is a critical vulnerability published on December 5, 2022. Telepad allows remote unauthenticated users to send instructions to the server to execute arbitrary code without any previous authorization or authentication. CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

When was CVE-2022-45477 disclosed?

CVE-2022-45477 was first published in the National Vulnerability Database on December 5, 2022, with the most recent update on April 24, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-45477 actively exploited?

CVE-2022-45477 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 93.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-45477?

CVE-2022-45477 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2022-45477?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-45477, 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-2022-45477

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Is Your Infrastructure Affected by CVE-2022-45477?

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CVE-2022-45477

📅 Published

🔄 Last Modified

📋 Advisory Details (1)