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CVE-2026-4253

A security flaw has been discovered in Tenda AC8 16.03.50.11. This affects the function route_set_user_policy_rule of the file /cgi-bin/UploadCfg of the component Web Interface. The manipulation of the argument wans.policy.list1 results in os command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:cd7b2e66cfea1ef0ad27bc401d192b824d8265e433074ff7950325abdddc2ac2
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":4.7,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":5.8,"vectorString":"AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":5.1,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"baseScore":4.7,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/metrics/2/cvssV3_0
cwe · 2 assertions

{"cweId":"CWE-78","description":"OS Command Injection","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-77","description":"Command Injection","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:o:tenda:ac8_firmware:*:*:*:*:*:*:*:*"],"modules":["Web Interface"],"product":"AC8","vendor":"Tenda","versions":[{"status":"affected","version":"16.03.50.11"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":4.7,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":5.8,"vectorString":"AV:N/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":5.1,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"baseScore":4.7,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/metrics/2/cvssV3_0

CWE assertions

2 source assertions
{"cweId":"CWE-78","description":"OS Command Injection","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-77","description":"Command Injection","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/problemTypes/1/descriptions/0

Source references

5 source assertions
{"tags":["exploit"],"url":"https://github.com/digitalandrew/tenda_ac8_v5/blob/main/poc_cmdi_config_upload.py"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/references/3
{"name":"VDB-351211 | CTI Indicators (IOB, IOC, TTP, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/?ctiid.351211"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/references/1
{"name":"VDB-351211 | Tenda AC8 Web UploadCfg route_set_user_policy_rule os command injection","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/?id.351211"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/references/0
{"name":"Submit #771771 | Tenda AC8 V5 V16.03.50.11 OS Command Injection","tags":["third-party-advisory"],"url":"https://vuldb.com/?submit.771771"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/references/2
{"tags":["product"],"url":"https://www.tenda.com.cn/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a9aa661241c6cb76ea5343974d22284ec9d7fd85a94f1667d296853d312abbb8 · sha256:3fa49b3004f0f762… · /containers/cna/references/4

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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