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Fencer Vulns
high 7.8

CVE-2021-31338 json

A vulnerability has been identified in SINEMA Remote Connect Client (All versions < V3.0 SP1).

published 2021-08-19 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-18248

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 15%
public exploits
0
none known

Summary

A vulnerability has been identified in SINEMA Remote Connect Client (All versions < V3.0 SP1). Affected devices allow to modify configuration settings over an unauthenticated channel. This could allow a local attacker to escalate privileges and execute own code on the device.

Patch / fix

  • siemens sinema_remote_connect 3.0

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Siemens SINEMA Remote Connect Client

Classification

Weakness
  • CWE-15 External Control of System or Configuration Setting

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.