CVE-2026-5153 (GCVE-0-2026-5153)

Vulnerability from cvelistv5 – Published: 2026-03-30 21:30 – Updated: 2026-03-31 15:29
VLAI Shadowserver Previdian
Title
Tenda CH22 WriteFacMac FormWriteFacMac command injection
Summary
A flaw has been found in Tenda CH22 1.0.0.1. The affected element is the function FormWriteFacMac of the file /goform/WriteFacMac. Executing a manipulation of the argument mac can lead to command injection. The attack may be launched remotely. The exploit has been published and may be used.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-31 15:28 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Tenda CH22 Affected: 1.0.0.1
    cpe:2.3:o:tenda:ch22_firmware:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
LtzHuster (VulDB User)
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: cc91554a-e029-4319-90ea-c2f22563c4c8

Vulnerability ID: CVE-2026-5153

Status: Confirmed

Status Updated: 2026-09-07 00:00 UTC

Exploited: Yes

Characteristics
Severity: 88.0
Timestamps
First Seen: 2026-09-01
Asserted: 2026-09-01
Last Seen: 2026-09-07
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Tenda / Tenda CH22 | Class: router | Severity: High (CVSS 8.8) | IoT: no | In CISA KEV: no | Honeypot connections on 2026-09-07: 5
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 1
Iot no
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class router
7D Avg 1
Vendor Tenda
30D Avg 0
90D Avg 0
Product Tenda CH22
Cisa Kev no
Connections 5
Observation Date 2026-09-07
Vulnerability Class CVSS
Vulnerability Score 8.8
Vulnerability Severity High
References
Created: 2026-09-03 01:02 UTC | Updated: 2026-09-09 01:01 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 7b4ab454-d7da-47b7-8de3-083f9b71d5a8

Vulnerability ID: CVE-2026-5153

Status: Confirmed

Status Updated: 2026-09-01 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-09-01
Asserted: 2026-09-01
Scope
Notes: Tenda CH22 WriteFacMac FormWriteFacMac command injection | Affected: Tenda / CH22 | CVSS: 5.3 (MEDIUM) | EPSS: 0.03298 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title Tenda CH22 WriteFacMac FormWriteFacMac command injection
Vendor Tenda
Product CH22
Added Date 2026-09-01T00:00:00.000Z
Cvss Score 5.3
Epss Score 0.03298
Cvss Severity MEDIUM
Epss Percentile 0.87651
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-09-02 11:00 UTC | Updated: 2026-09-02 11:00 UTC
Show details on NVD website
To clipboard 

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              ],
              "url": "https://vuldb.com/vuln/354185"
            },
            {
              "name": "VDB-354185 | CTI Indicators (IOB, IOC, TTP, IOA)",
              "tags": [
                "signature",
                "permissions-required"
              ],
              "url": "https://vuldb.com/vuln/354185/cti"
            },
            {
              "name": "Submit #780204 | Tenda CH22 V1.0.0.1 Command Injection",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/submit/780204"
            },
            {
              "tags": [
                "exploit"
              ],
              "url": "https://github.com/Litengzheng/vuldb_new/blob/main/CH22/vul_60/README.md"
            },
            {
              "tags": [
                "product"
              ],
              "url": "https://www.tenda.com.cn/"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-03-30T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
            {
              "lang": "en",
              "time": "2026-03-30T02:00:00.000Z",
              "value": "VulDB entry created"
            },
            {
              "lang": "en",
              "time": "2026-03-30T15:38:23.000Z",
              "value": "VulDB entry last update"
            }
          ],
          "title": "Tenda CH22 WriteFacMac FormWriteFacMac command injection"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "assignerShortName": "VulDB",
        "cveId": "CVE-2026-5153",
        "datePublished": "2026-03-30T21:30:16.286Z",
        "dateReserved": "2026-03-30T13:33:06.409Z",
        "dateUpdated": "2026-03-30T21:30:16.286Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.



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.