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TI-2026-21916 Aliases CVE-2026-27512GHSA-62pw-p3ph-rgh9

Tenda F3 Reflected Script Execution via Missing nosniff Header

Priority LOW 23CWE-116Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Shenzhen Tenda F3 Wireless Router firmware V12.01.01.55_multi contains a content-type confusion vulnerability in the administrative interface. Responses omit the X-Content-Type-Options: nosniff header and include attacker-influenced content that can be reflected into the response body. Under affected browser behaviors, MIME sniffing may cause the response to be interpreted as active HTML, enabling script execution in the context of the administrative interface.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00218 12th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TendaTenda F3up to 12.01.01.55_multi—No fix listedCNA
  • Tenda F3 VendorTenda Affected up to 12.01.01.55_multi Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:tenda:f3_firmware:*:*:*:*:*:*:*:*up to 12.01.01.55_multiVulnerableTenda
cpe:2.3:h:tenda:f3:-:*:*:*:*:*:*:*not specified by NVDRunning onTenda
  • cpe:2.3:o:tenda:f3_firmware:*:*:*:*:*:*:*:* Versions up to 12.01.01.55_multi Vulnerable ·Tenda
  • cpe:2.3:h:tenda:f3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tenda

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-27512
  2. 2026-10-03 Alias added: GHSA-62pw-p3ph-rgh9

References

Other 1

  • TI-2020-17965 Tenda N300 F3 12.01.01.48 devices allow remote attackers to obtain sensitive information… CVSS 3.1CRITICAL 9.6
  • TI-2025-35571 Tenda F3 V12.01.01.48_multi and after is vulnerable to Buffer Overflow via the… CVSS 3.1MEDIUM 5.6
  • TI-2025-35570 Tenda F3 V12.01.01.48_multi and after is vulnerable to Buffer Overflow via the onlineList… CVSS 3.1MEDIUM 5.6
  • TI-2025-35569 Tenda F3 V12.01.01.48_multi and after is vulnerable to Buffer Overflow. CVSS 3.1MEDIUM 5.6
  • TI-2025-35568 Tenda F3 V12.01.01.48_multi and after is vulnerable to Buffer Overflow via the QosList parameter in goform/setQoS. CVSS 3.1MEDIUM 5.6
  • TI-2025-35567 Tenda F3 V12.01.01.48_multi and after is vulnerable to Buffer Overflow via the portList parameter in /goform/setNAT. CVSS 3.1MEDIUM 5.6
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences