How severe is CVE-2026-5849?

CVE-2026-5849 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-5849 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5849?

CVE-2026-5849 affects Tenda I12 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5849?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-5849 have an EU (EUVD) identifier?

Yes. CVE-2026-5849 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20860.

When was CVE-2026-5849 published?

CVE-2026-5849 was published on 2026-04-09 and last updated on 2026-06-17.

CVE-2026-5849

CVE-2026-5849 is a high-severity vulnerability in Tenda I12 Firmware with a CVSS 3.x base score of 7.3. 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 7.5
CVSS v4: 5.5
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20860
Weakness: CWE-22
Affected product: Tenda I12 Firmware
Published: 2026-04-09
Last modified: 2026-06-17

Description

A vulnerability was determined in Tenda i12 1.0.0.11(3862). The impacted element is an unknown function of the component HTTP Handler. Executing a manipulation can lead to path traversal. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.

Frequently asked questions

What is CVE-2026-5849?: A vulnerability was determined in Tenda i12 1.0.0.11(3862). The impacted element is an unknown function of the component HTTP Handler. Executing a manipulation can lead to path traversal. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.
How severe is CVE-2026-5849?: CVE-2026-5849 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-5849 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5849?: CVE-2026-5849 affects Tenda I12 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5849?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-5849 have an EU (EUVD) identifier?: Yes. CVE-2026-5849 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20860.
When was CVE-2026-5849 published?: CVE-2026-5849 was published on 2026-04-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:i12_firmware:1.0.0.11\(3862\):*:*:*:*:*:*:*

More vulnerabilities in Tenda I12 Firmware

CVE-2025-25678 — Critical (CVSS 9.8): Tenda i12 V1.0.0.10(3805) was discovered to contain a buffer overflow via the funcpara1 parameter in the formSetCfm…
CVE-2025-25676 — Critical (CVSS 9.8): Tenda i12 V1.0.0.10(3805) was discovered to contain a buffer overflow via the list parameter in the formwrlSSIDset…
CVE-2026-5609 — High (CVSS 8.8): A flaw has been found in Tenda i12 1.0.0.11(3862). Affected by this vulnerability is the function formwrlSSIDset of the…
CVE-2026-4043 — High (CVSS 8.8): A security vulnerability has been detected in Tenda i12 1.0.0.6(2204). The impacted element is the function…
CVE-2026-4042 — High (CVSS 8.8): A weakness has been identified in Tenda i12 1.0.0.6(2204). The affected element is the function formWifiMacFilterGet of…
CVE-2026-4041 — High (CVSS 8.8): A security flaw has been discovered in Tenda i12 1.0.0.6(2204). Impacted is the function vos_strcpy of the file…

All CVEs affecting Tenda I12 Firmware →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-48282 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted…
CVE-2026-54917 — Critical (CVSS 10.0): SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the…
CVE-2026-11429 — Critical (CVSS 10.0): Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file…
CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
CVE-2026-36767 — Critical (CVSS 10.0): A path traversal vulnerability in the /content/images/add endpoint of shopizer v3.2.5 allows attackers write arbitrary…

Browse all CWE-22 (Path Traversal) vulnerabilities →