CVE-2022-36553

CRITICALNVD 9.89.8—Elevated

9.8

Hytec Inter HWL-2511-SS v1.05 and below was discovered to contain a command injection vulnerability via the component /www/cgi-bin/popen.cgi.

CVSS v3: 9.8
EG Score: 9.8(high)
EPSS: 99.8%
KEV: Not listed

Published

August 29, 2022

Last Modified

November 21, 2024

References (6)

cve@mitrehttps://gist.github.com/Nwqda/b27418ab801eb0b9cdbe8d042cb0249b
cve@mitrehttps://hytec.co.jp/eng/products/our-brand/hwl-2511-ss.html
cve@mitrehttps://hytec.co.jp/eng/wordpress/wp-content/uploads/2019/09/hwl-2511-ss-ds.3.0.pdf
af854a3a-2127-422b-91ae-364da2661108https://gist.github.com/Nwqda/b27418ab801eb0b9cdbe8d042cb0249b
af854a3a-2127-422b-91ae-364da2661108https://hytec.co.jp/eng/products/our-brand/hwl-2511-ss.html
af854a3a-2127-422b-91ae-364da2661108https://hytec.co.jp/eng/wordpress/wp-content/uploads/2019/09/hwl-2511-ss-ds.3.0.pdf

Weakness Classification(1)

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

CWE-77Command Injection

Data Freshness Timeline

(refreshed 4× in last 7d / 11× 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
2026-06-04 13:11 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 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 16:18 UTCEG score recompute
2026-05-25 16:18 UTCGHSA enrichment

Publicly available exploits

(2 references)

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 PoC0xNslabs/CVE-2022-36553-PoC
First seen Jan 8, 2024
PoC Script for CVE-2022-36553: Exploits an unauthenticated remote command injection vulnerability in Hytec Inter HWL-2511-SS device.
Open source ↗
Nucleihttp/cves/2022/CVE-2022-36553.yaml
First seen Jan 1, 2022
Hytec Inter HWL-2511-SS - Remote Command Execution
Open source ↗

Frequently asked(5)

What is CVE-2022-36553?

CVE-2022-36553 is a critical vulnerability published on August 29, 2022. Hytec Inter HWL-2511-SS v1.05 and below was discovered to contain a command injection vulnerability via the component /www/cgi-bin/popen.cgi.

When was CVE-2022-36553 disclosed?

CVE-2022-36553 was first published in the National Vulnerability Database on August 29, 2022, 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-2022-36553 actively exploited?

CVE-2022-36553 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-36553?

CVE-2022-36553 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2022-36553?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-36553, 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-2022-36553

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-36553?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)