CVE-2016-9154

Q: How do I fix CVE-2016-9154?

No published fix for CVE-2016-9154 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

Q: Is CVE-2016-9154 being actively exploited?

Not that we know of. CVE-2016-9154 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.5% is the estimated probability that it will be exploited in the next 30 days. That is higher than 72% of all scored CVEs.

Q: How severe is CVE-2016-9154?

CVE-2016-9154 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

HIGHEPSS 72th pctl

7.5

CVSS v3

NVD

Description

Siemens Desigo PX Web modules PXA40-W0, PXA40-W1, PXA40-W2 for Desigo PX automation controllers PXC00-E.D, PXC50-E.D, PXC100-E.D, PXC200-E.D (All firmware versions < V6.00.046) and Desigo PX Web modules PXA30-W0, PXA30-W1, PXA30-W2 for Desigo PX automation controllers PXC00-U, PXC64-U, PXC128-U (All firmware versions < V6.00.046) use a pseudo random number generator with insufficient entropy to generate certificates for HTTPS, potentially allowing remote attackers to reconstruct the corresponding private key.

CWE-332

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

1.50%probability of exploitation in 30 days

72ndpercentile

Elevated risk: more likely to be exploited than 72% of all known CVEs.

References

Vendor Advisory1

siemens.com

Third-Party Advisory2

Related Vulnerabilities

Other CWE-332 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-18486	High	7.2	4.8%	-	Fix
CVE-2016-10743	High	7.5	2.4%	-	Fix
CVE-2014-0016	Medium	4.3	2.2%	-	-
CVE-2018-9057	Critical	9.8	2.0%	-	-
CVE-2019-1715	Medium	5.3	1.7%	-	Fix
CVE-2014-9690	High	7.5	0.8%	-	-

Common questions

How do I fix CVE-2016-9154?

No published fix for CVE-2016-9154 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

Is CVE-2016-9154 being actively exploited?

Not that we know of. CVE-2016-9154 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.5% is the estimated probability that it will be exploited in the next 30 days. That is higher than 72% of all scored CVEs.

How severe is CVE-2016-9154?

CVE-2016-9154 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.