How severe is CVE-2022-36553?

CVE-2022-36553 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-36553 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 91% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-36553?

CVE-2022-36553 affects Hytec Hwl-2511-ss Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-36553?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-36553 published?

CVE-2022-36553 was published on 2022-08-29 and last updated on 2026-06-17.

CVE-2022-36553

CVE-2022-36553 is a critical-severity vulnerability in Hytec Hwl-2511-ss Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 91% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-77.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 91% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Hytec Hwl-2511-ss Firmware
Published: 2022-08-29
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2022-36553?: 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.
How severe is CVE-2022-36553?: CVE-2022-36553 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-36553 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 91% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-36553?: CVE-2022-36553 affects Hytec Hwl-2511-ss Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-36553?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-36553 published?: CVE-2022-36553 was published on 2022-08-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:hytec:hwl-2511-ss_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Hytec Hwl-2511-ss Firmware

CVE-2022-36555 — Critical (CVSS 9.8): Hytec Inter HWL-2511-SS v1.05 and below implements a SHA512crypt hash for the root account which can be easily cracked…
CVE-2022-36554 — Critical (CVSS 9.8): A command injection vulnerability in the CLI (Command Line Interface) implementation of Hytec Inter HWL-2511-SS v1.05…

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