Vulnerability-Lookup

CNVD-2026-21364

Vulnerability from cnvd - Published: 2026-05-22

Title

F5 BIG-IP和F5 BIG-IQ不当权限分配漏洞

Description

F5 BIG-IP是一款集成了网络流量管理、应用程序安全管理、负载均衡等功能的应用交付平台。F5 BIG-IQ是一套基于软件的云管理解决方案。该方案支持跨公共和私有云、传统数据中心和混合环境部署应用交付和网络服务。 F5 BIG-IP和F5 BIG-IQ存在不当权限分配漏洞，攻击者可利用该漏洞查看相邻网络信息。

Severity

中

Patch Name

F5 BIG-IP和F5 BIG-IQ不当权限分配漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://my.f5.com/manage/s/article/K000161018

Reference

https://my.f5.com/manage/s/article/K000161018

Impacted products

Name
['F5 BIG-IP (all modules) 21.0.0', 'F5 BIG-IP (all modules) >=17.5.0，<=17.5.1', 'F5 BIG-IP (all modules) >=17.1.0，<=17.1.3', 'F5 BIG-IP (all modules) >=16.1.0，<=16.1.6', 'F5 BIG-IQ Centralized Management >=8.4.0，<=8.4.1']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-42937",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-42937"
    }
  },
  "description": "F5 BIG-IP\u662f\u4e00\u6b3e\u96c6\u6210\u4e86\u7f51\u7edc\u6d41\u91cf\u7ba1\u7406\u3001\u5e94\u7528\u7a0b\u5e8f\u5b89\u5168\u7ba1\u7406\u3001\u8d1f\u8f7d\u5747\u8861\u7b49\u529f\u80fd\u7684\u5e94\u7528\u4ea4\u4ed8\u5e73\u53f0\u3002F5 BIG-IQ\u662f\u4e00\u5957\u57fa\u4e8e\u8f6f\u4ef6\u7684\u4e91\u7ba1\u7406\u89e3\u51b3\u65b9\u6848\u3002\u8be5\u65b9\u6848\u652f\u6301\u8de8\u516c\u5171\u548c\u79c1\u6709\u4e91\u3001\u4f20\u7edf\u6570\u636e\u4e2d\u5fc3\u548c\u6df7\u5408\u73af\u5883\u90e8\u7f72\u5e94\u7528\u4ea4\u4ed8\u548c\u7f51\u7edc\u670d\u52a1\u3002 \n\nF5 BIG-IP\u548cF5 BIG-IQ\u5b58\u5728\u4e0d\u5f53\u6743\u9650\u5206\u914d\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u67e5\u770b\u76f8\u90bb\u7f51\u7edc\u4fe1\u606f\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://my.f5.com/manage/s/article/K000161018",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-21364",
  "openTime": "2026-05-22",
  "patchDescription": "F5 BIG-IP\u662f\u4e00\u6b3e\u96c6\u6210\u4e86\u7f51\u7edc\u6d41\u91cf\u7ba1\u7406\u3001\u5e94\u7528\u7a0b\u5e8f\u5b89\u5168\u7ba1\u7406\u3001\u8d1f\u8f7d\u5747\u8861\u7b49\u529f\u80fd\u7684\u5e94\u7528\u4ea4\u4ed8\u5e73\u53f0\u3002F5 BIG-IQ\u662f\u4e00\u5957\u57fa\u4e8e\u8f6f\u4ef6\u7684\u4e91\u7ba1\u7406\u89e3\u51b3\u65b9\u6848\u3002\u8be5\u65b9\u6848\u652f\u6301\u8de8\u516c\u5171\u548c\u79c1\u6709\u4e91\u3001\u4f20\u7edf\u6570\u636e\u4e2d\u5fc3\u548c\u6df7\u5408\u73af\u5883\u90e8\u7f72\u5e94\u7528\u4ea4\u4ed8\u548c\u7f51\u7edc\u670d\u52a1\u3002 \r\n\r\nF5 BIG-IP\u548cF5 BIG-IQ\u5b58\u5728\u4e0d\u5f53\u6743\u9650\u5206\u914d\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u67e5\u770b\u76f8\u90bb\u7f51\u7edc\u4fe1\u606f\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "F5 BIG-IP\u548cF5 BIG-IQ\u4e0d\u5f53\u6743\u9650\u5206\u914d\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "F5 BIG-IP (all modules) 21.0.0",
      "F5 BIG-IP (all modules) \u003e=17.5.0\uff0c\u003c=17.5.1",
      "F5 BIG-IP (all modules) \u003e=17.1.0\uff0c\u003c=17.1.3",
      "F5 BIG-IP (all modules) \u003e=16.1.0\uff0c\u003c=16.1.6",
      "F5 BIG-IQ Centralized Management  \u003e=8.4.0\uff0c\u003c=8.4.1"
    ]
  },
  "referenceLink": "https://my.f5.com/manage/s/article/K000161018",
  "serverity": "\u4e2d",
  "submitTime": "2026-05-14",
  "title": "F5 BIG-IP\u548cF5 BIG-IQ\u4e0d\u5f53\u6743\u9650\u5206\u914d\u6f0f\u6d1e"
}

CVE-2026-42937 (GCVE-0-2026-42937)

Vulnerability from cvelistv5 – Published: 2026-05-13 14:12 – Updated: 2026-05-13 16:09

Title

iControl REST and tmsh vulnerability

Summary

Incorrect permission assignment vulnerabilities exist in BIG-IP and BIG-IQ TMOS Shell (tmsh) arp and ndp commands, and in BIG-IP iControl REST. These vulnerabilities may allow an authenticated attacker to view adjacent network information. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Severity

6.5 (Medium)


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

7.1 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

5.5 (Medium)


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

6.8 (Medium)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-13 16:02 UTC

CWE

CWE-732 - Incorrect Permission Assignment for Critical Resource

Assigner

f5 mitre root

References

1 reference

URL	Tags
https://my.f5.com/manage/s/article/K000161018	vendor-advisorypatch

Impacted products

2 products

Vendor	Product	Version
F5	BIG-IP	Unaffected: 21.1.0 , < * (custom) Affected: 21.0.0 , < 21.0.0.2 (custom) Affected: 17.5.0 , < 17.5.1.6 (custom) Affected: 17.1.0 , < 17.1.3.2 (custom) Affected: 16.1.0 , < * (custom)
F5	BIG-IQ	Affected: 8.4.0 , < * (custom)

Date Public

2026-05-13 14:00

Credits

Show details on NVD website

JSON

To clipboard

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  "containers": {
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      {
        "metrics": [
          {
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                "id": "CVE-2026-42937",
                "options": [
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                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T16:02:58.207895Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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          "modules": [
            "All Modules"
          ],
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            {
              "lessThan": "17.1.3.2",
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.