What is the CVSS score of CVE-2022-36324?

CVE-2022-36324 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 1.1%.

Scalance W700 Ieee 802 11N Firmware CVE-2022-36324

HIGH

Allocation of Resources Without Limits or Throttling (CWE-770)

2022-08-10 productcert@siemens.com

7.5

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-770 OWASP Top 10:2025 A06:2025 - Insecure Design ASVS 5.0 V2 - Validation and Business Logic Resource allocation limits MITRE ATT&CK 1 technique across 1 tactic: Impact The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 1.07%.
Exploit ScenarioDerived	A remote attacker could exhaust system resources through uncontrolled allocation by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: Active threat signals + CRITICAL/HIGH severity.

No patch listed yet 1.1% exploitation probability (EPSS)

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AnalysisAI

Affected devices do not properly handle the renegotiation of SSL/TLS parameters. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Set resource limits, implement rate limiting, validate input sizes.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as Allocation of Resources Without Limits (CWE-770), which allows attackers to exhaust system resources through uncontrolled allocation. Affected devices do not properly handle the renegotiation of SSL/TLS parameters. This could allow an unauthenticated remote attacker to bypass the TCP brute force prevention and lead to a denial of service condition for the duration of the attack. Affected products include: Siemens Scalance M-800 Firmware, Siemens Scalance S615 Firmware, Siemens Scalance W700 Ieee 802.11Ax Firmware, Siemens Scalance W700 Ieee 802.11N Firmware, Siemens Scalance W700 Ieee 802.11Ac Firmware.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

DescriptionCVE.org

Affected devices do not properly handle the renegotiation of SSL/TLS parameters. This could allow an unauthenticated remote attacker to bypass the TCP brute force prevention and lead to a denial of service condition for the duration of the attack.

Threat Intelligence Overview

EPSS Score

1.1%

Top 22% exploitable

Threat Intel

1 source

Data Quality

5 sources

Confidence: Medium

NVD

CVE.org

EPSS CISA

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 1.1%

Patch available No

Active threat Yes

Deciding rule

Active threat signals + CRITICAL/HIGH severity

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +38

PoC: 0

Weaponized: 0

Threat intel: +10

Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:o:siemens:scalance_m-800_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_s615_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_w700_ieee_802.11ax_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_w700_ieee_802.11n_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_w700_ieee_802.11ac_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_xb-200_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_xb205-3_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_xb205-3ld_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_xb208_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_xb213-3_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_xb213-3ld_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_xb216_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_xc-200_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_xc206-2_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_xc206-2g_poe__firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_xc206-2g_poe_eec_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_xc206-2sfp_eec_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_xc206-2sfp_g_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_xc206-2sfp_g_\(e\/ip\)_firmware:*:*:*:*:*:*:*:*

cpe:2.3:o:siemens:scalance_xc206-2sfp_g_eec_firmware:*:*:*:*:*:*:*:*

+ 64 more

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Threat IntelligenceMISP

CISA Advisories

ICSA-26-111-07

Sources: CISA (public domain)

References

Advisories & patches

ADVISORY https://cert-portal.siemens.com/productcert/pdf/ssa-710008.pdf ADVISORY https://vuldb.com/vuln/206044 REF https://cert-portal.siemens.com/productcert/html/ssa-019200.html REF https://cert-portal.siemens.com/productcert/html/ssa-710008.html

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GitHub PoC

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