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CVE-2026-890409.8CriticalCWE-22

CVE-2026-89040: Tencent Mass Service Engine in Cluster (MSEC) path traversal

Tencent · Mass Service Engine in Cluster (MSEC)

Affected: Tencent Mass Service Engine in Cluster (MSEC) · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

1.1%probability of exploitation in the next 30 days
67th percentile
050100

Higher than 67% of scored CVEs

9.8CriticalCVSS 3.1
LowCrit.

DescriptionCVE.org

Tencent Mass Service Engine in Cluster (MSEC) allows a remote, unauthenticated attacker to send a crafted POST request including ../ and gain root access on the target device. An attacker who uploads a webshell can execute arbitrary code as root.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • Tencent · Mass Service Engine in Cluster (MSEC)0

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
Tencent

CoverageNo articles yet

No CyberSIXT article names CVE-2026-89040 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References