9.8

CVE-2022-46353: siemens 6gk5204-0ba00-2kb2_firmware Use of Insufficiently Random Values

CVSS: 9.8v3.1CriticalModified
Published 13-12-2022Last modified 22-04-2025
Open JSON

Vulnerability summary

CVE-2022-46353 is a critical (CVSS 9.8) Use of Insufficiently Random Values vulnerability in siemens 6gk5204-0ba00-2kb2_firmware. EPSS estimates a 1.07% chance of exploitation in the next 30 days, higher than 64.2% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
1.07%
0%100%
Low · +0.07 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-12-2022
    PublishedVulnerability first disclosed.
  2. 22-04-2025
    Last modifiedVulnerability information updated.

Description

A vulnerability has been identified in SCALANCE X204RNA (HSR) (All versions < V3.2.7), SCALANCE X204RNA (PRP) (All versions < V3.2.7), SCALANCE X204RNA EEC (HSR) (All versions < V3.2.7), SCALANCE X204RNA EEC (PRP) (All versions < V3.2.7), SCALANCE X204RNA EEC (PRP/HSR) (All versions < V3.2.7). The webserver of affected devices calculates session ids and nonces in an insecure manner. This could allow an unauthenticated remote attacker to brute-force session ids and hijack existing sessions.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.07%

Chance of exploitation in the next 30 days

Percentile

64%

Versus all other CVEs

30-day change

+0.07 pp

From 1.00% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.07%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Siemens10 products

1 vendor · 10 products

References

1 links