Vulnerability-Lookup

CNVD-2026-34488

Vulnerability from cnvd - Published: 2026-08-31

Title

Cisco Crosswork Planning关键功能缺少认证漏洞

Description

Cisco Crosswork Planning是思科Crosswork网络自动化套件中的核心规划与分析组件，用于‌主动建模、仿真、优化多厂商网络基础设施‌，支撑容量规划、故障预测与流量工程决策。 Cisco Crosswork Planning存在关键功能缺少认证漏洞，该漏洞源于关键功能未能正确进行身份验证，攻击者可利用该漏洞在未经授权的情况下访问或操作受影响的系统功能，导致网络配置被非法篡改或敏感信息泄露。

Severity

高

Patch Name

Cisco Crosswork Planning关键功能缺少认证漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级程序修复该安全问题，详情见厂商官网: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-crosswork-UzDTU9Vh

Reference

https://nvd.nist.gov/vuln/detail/cve-2026-20357

Impacted products

Name
['Cisco Cisco Crosswork Planning 7.0.2', 'Cisco Cisco Crosswork Planning 7.1.0', 'Cisco Cisco Crosswork Planning 7.0.0', 'Cisco Cisco Crosswork Planning 7.0.4', 'Cisco Cisco Crosswork Planning 7.0.1', 'Cisco Cisco Crosswork Planning 7.0.3', 'Cisco Cisco Crosswork Planning 7.2.0', 'Cisco Cisco Crosswork Planning 7.1.1', 'Cisco Cisco Crosswork Planning 7.1.2']

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JSON

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    "cve": {
      "cveNumber": "CVE-2026-20357",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-20357"
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      "Cisco Cisco Crosswork Planning 7.0.1",
      "Cisco Cisco Crosswork Planning 7.0.3",
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  "title": "Cisco Crosswork Planning\u5173\u952e\u529f\u80fd\u7f3a\u5c11\u8ba4\u8bc1\u6f0f\u6d1e"
}

CVE-2026-20357 (GCVE-0-2026-20357)

Vulnerability from cvelistv5 – Published: 2026-08-19 16:18 – Updated: 2026-08-21 16:16

CVE Program bundle warning

The CVE Program recognizes that this CVE Record provides vulnerability information that a Supplier CNA believes is very important to consumers. The CVE Program has flagged this CVE Record as it assigns a single CVE ID to a collection of individual vulnerabilities which does not align with CVE's "one vulnerability, one ID" principle, and therefore provides incomplete information. For further clarification, please see the CVE Program's blog, "Preserving Vulnerability-Level Identification" linked below. Details within the CNA container below are viewable by clicking on the CNA name.

https://www.cve.org/Media/News/item/blog/2026/06/…

Title

Cisco Crosswork Security Hardening Release: August 2026

Summary

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Crosswork engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20357 are related to missing authentication for critical function issues that are grouped under the Common Weakness Enumeration (CWE) CWE-306.

Severity

10 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-21 16:06 UTC

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

cisco mitre root

References

1 reference

URL	Tags
https://sec.cloudapps.cisco.com/security/center/c…

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco Crosswork Planning	Affected: 7.0.2 Affected: 7.1.0 Affected: 7.0.0 Affected: 7.0.4 Affected: 7.0.1 Affected: 7.0.3 Affected: 7.2.0 Affected: 7.1.1 Affected: 7.1.2

Show details on NVD website

JSON

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{
  "containers": {
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      {
        "descriptions": [
          {
            "lang": "en",
            "value": "The CVE Program recognizes that this CVE Record provides vulnerability information that a Supplier CNA believes is very important to consumers. The CVE Program has flagged this CVE Record as it assigns a single CVE ID to a collection of individual vulnerabilities which does not align with CVE\u0027s \"one vulnerability, one ID\" principle, and therefore provides incomplete information. For further clarification, please see the CVE Program\u0027s blog, \"Preserving Vulnerability-Level Identification\" linked below. Details within the CNA container below are viewable by clicking on the CNA name."
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        "providerMetadata": {
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        "tags": [
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      {
        "metrics": [
          {
            "other": {
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                "id": "CVE-2026-20357",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-21T16:06:55.501848Z",
                "version": "2.0.3"
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          "dateUpdated": "2026-08-21T16:16:10.667Z",
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          "shortName": "CISA-ADP"
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    ],
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        }
      ],
      "exploits": [
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          "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."
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      "metrics": [
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
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            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.