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

published 2021-03-15 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-17929

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.0%; EPSS 1.0% chance of exploitation in 30 days, percentile 62%
public exploits: 0; none known

A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.0). The webserver could allow unauthorized actions via special urls for unpriviledged users. The settings of the UMC authorization server could be changed to add a rogue server by an attacker authenticating with unprivilege user rights.

Patch / fix

fixed in 1

siemens sinema_remote_connect_server 3.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-068-04 updated 2021-03-09 cvss 8.8

Siemens SINEMA Remote Connect Server

Siemens SINEMA Remote Connect Server <V3.0
affected: fixed in V3.0, mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

0.97% chance of exploitation in the next 30 days, higher than 62% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

Siemens SINEMA Remote Connect Server

Classification

Weakness

CWE-863 Incorrect Authorization

References

cert-portal.siemens.com /productcert/pdf/ssa-731317.pdf
vendor-advisory

Sources

CVE List CVE-2020-25239
NVD CVE-2020-25239

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.

Summary