CVE-2022-22683

CRITICALNVD 10.09.8▼

10.0

Buffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in cgi component in Synology Media Server before 1.8.1-2876 allows remote attackers to execute arbitrary code via unspecified vectors.

CVSS v3: 10.0
EG Score: 9.8(medium)
EPSS: 84.3%
KEV: Not listed

Published

July 28, 2022

Last Modified

January 14, 2025

Advisory Details (1)

Auto-updated May 23, 2026

No patch confirmed yet.

generic

Synology_SA_20_24 | Synology Inc.

https://www.synology.com/security/advisory/Synology_SA_20_24

Weakness Classification(1)

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

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

(refreshed 14× 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.

2026-06-05 06:09 UTCepss_batch
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Frequently asked(5)

What is CVE-2022-22683?

CVE-2022-22683 is a critical vulnerability published on July 28, 2022. Buffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in cgi component in Synology Media Server before 1.8.1-2876 allows remote attackers to execute arbitrary code via unspecified vectors.

When was CVE-2022-22683 disclosed?

CVE-2022-22683 was first published in the National Vulnerability Database on July 28, 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-2022-22683 actively exploited?

CVE-2022-22683 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 84.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-22683?

CVE-2022-22683 has a CVSS v3 base score of 10.0 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.

How do I remediate CVE-2022-22683?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-22683, 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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CVE-2022-22683

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

Synology_SA_20_24 | Synology Inc.

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-22683?

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Frequently asked(5)

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