CVE-2026-5547
CVE-2026-5547 is a medium-severity vulnerability in Tenda Ac10 Firmware with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.
Key facts
- Severity: Medium (CVSS 3.x base score 6.3)
- CVSS v2: 6.5
- CVSS v4: 5.3
- EPSS exploit prediction: 2% (77th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-19042
- Weakness: CWE-77
- Affected product: Tenda Ac10 Firmware
- Published:
- Last modified:
Description
A vulnerability has been found in Tenda AC10 16.03.10.10_multi_TDE01. Affected is the function formAddMacfilterRule of the file /bin/httpd. Such manipulation leads to os command injection. It is possible to launch the attack remotely. Multiple endpoints might be affected.
Frequently asked questions
- What is CVE-2026-5547?
- A vulnerability has been found in Tenda AC10 16.03.10.10_multi_TDE01. Affected is the function formAddMacfilterRule of the file /bin/httpd. Such manipulation leads to os command injection. It is possible to launch the attack remotely. Multiple endpoints might be affected.
- How severe is CVE-2026-5547?
- CVE-2026-5547 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2026-5547 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-5547?
- CVE-2026-5547 affects Tenda Ac10 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-5547?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-5547 have an EU (EUVD) identifier?
- Yes. CVE-2026-5547 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19042.
- When was CVE-2026-5547 published?
- CVE-2026-5547 was published on 2026-04-05 and last updated on 2026-06-17.
References
- https://github.com/somanyerrors/tenda-ac10v4-vulnerabilities/blob/main/findings/CRITICAL-03-command-injection-formaddmacfilterrule.md
- https://vuldb.com/submit/782296
- https://vuldb.com/vuln/355311
- https://vuldb.com/vuln/355311/cti
- https://www.tenda.com.cn/
Affected products (1)
- cpe:2.3:o:tenda:ac10_firmware:16.03.10.10_multi_tde01:*:*:*:*:*:*:*
More vulnerabilities in Tenda Ac10 Firmware
- CVE-2025-67073 — Critical (CVSS 9.8): A Buffer overflow vulnerability in function fromAdvSetMacMtuWan of bin httpd in Tenda AC10V4.0 V16.03.10.20 allows…
- CVE-2025-45779 — Critical (CVSS 9.8): Tenda AC10 V1.0re_V15.03.06.46 is vulnerable to Buffer Overflow in the formSetPPTPUserList handler via the list POST…
- CVE-2025-25456 — Critical (CVSS 9.8): Tenda AC10 V4.0si_V16.03.10.20 is vulnerable to Buffer Overflow in AdvSetMacMtuWan via mac2.
- CVE-2025-25675 — Critical (CVSS 9.8): Tenda AC10 V1.0 V15.03.06.23 has a command injection vulnerablility located in the formexeCommand function. The str…
- CVE-2025-25674 — Critical (CVSS 9.8): Tenda AC10 V1.0 V15.03.06.23 is vulnerable to Buffer Overflow in form_fast_setting_wifi_set via the parameter ssid.
- CVE-2023-45484 — Critical (CVSS 9.8): Tenda AC10 version US_AC10V4.0si_V16.03.10.13_cn was discovered to contain a stack overflow via the shareSpeed…
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