NVD / CVE Program· CNA siemens

CVE-2022-45044: A vulnerability has been identified in SIPROTEC 5 6MD84 (CP300) (All versions < V9.50), SIPROTEC 5 6MD85 (CP200) (All versions), SIPROTEC 5

Noroxi assessment

Priority: Monitor (action score 21/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.74% (FIRST EPSS); higher than 54.8% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A vulnerability has been identified in SIPROTEC 5 6MD84 (CP300) (All versions < V9.50), SIPROTEC 5 6MD85 (CP200) (All versions), SIPROTEC 5 6MD85 (CP300) (All versions < V9.50), SIPROTEC 5 6MD86 (CP200) (All versions), SIPROTEC 5 6MD86 (CP300) (All versions < V9.50), SIPROTEC 5 6MD89 (CP300) (All versions < V9.64), SIPROTEC 5 6MU85 (CP300) (All versions < V9.50), SIPROTEC 5 7KE85 (CP200) (All versions), SIPROTEC 5 7KE85 (CP300) (All versions < V9.64), SIPROTEC 5 7SA82 (CP100) (All versions < V8.90), SIPROTEC 5 7SA82 (CP150) (All versions < V9.50), SIPROTEC 5 7SA84 (CP200) (All versions), SIPROTEC 5 7SA86 (CP200) (All versions), SIPROTEC 5 7SA86 (CP300) (All versions < V9.50), SIPROTEC 5 7SA87 (CP200) (All versions), SIPROTEC 5 7SA87 (CP300) (All versions < V9.50), SIPROTEC 5 7SD82 (CP100) (All versions < V8.90), SIPROTEC 5 7SD82 (CP150) (All versions < V9.50), SIPROTEC 5 7SD84 (CP200) (All versions), SIPROTEC 5 7SD86 (CP200) (All versions), SIPROTEC 5 7SD86 (CP300) (All versions < V9.50), SIPROTEC 5 7SD87 (CP200) (All versions), SIPROTEC 5 7SD87 (CP300) (All versions < V9.50), SIPROTEC 5 7SJ81 (CP100) (All versions < V8.89), SIPROTEC 5 7SJ81 (CP150) (All versions < V9.50), SIPROTEC 5 7SJ82 (CP100) (All versions < V8.89), SIPROTEC 5 7SJ82 (CP150) (All versions < V9.50), SIPROTEC 5 7SJ85 (CP200) (All versions), SIPROTEC 5 7SJ85 (CP300) (All versions < V9.50), SIPROTEC 5 7SJ86 (CP200) (All versions), SIPROTEC 5 7SJ86 (CP300) (All versions < V9.50), SIPROTEC 5 7SK82 (CP100) (All versions < V8.89), SIPROTEC 5 7SK82 (CP150) (All versions < V9.50), SIPROTEC 5 7SK85 (CP200) (All versions), SIPROTEC 5 7SK85 (CP300) (All versions < V9.50), SIPROTEC 5 7SL82 (CP100) (All versions < V8.90), SIPROTEC 5 7SL82 (CP150) (All versions < V9.50), SIPROTEC 5 7SL86 (CP200) (All versions), SIPROTEC 5 7SL86 (CP300) (All versions < V9.50), SIPROTEC 5 7SL87 (CP200) (All versions), SIPROTEC 5 7SL87 (CP300) (All versions < V9.50), SIPROTEC 5 7SS85 (CP200) (All versions), SIPROTEC 5 7SS85 (CP300) (All versions < V9.50), SIPROTEC 5 7ST85 (CP200) (All versions), SIPROTEC 5 7ST85 (CP300) (All versions < V9.64), SIPROTEC 5 7ST86 (CP300) (All versions < V9.64), SIPROTEC 5 7SX82 (CP150) (All versions < V9.50), SIPROTEC 5 7SX85 (CP300) (All versions < V9.50), SIPROTEC 5 7UM85 (CP300) (All versions < V9.50), SIPROTEC 5 7UT82 (CP100) (All versions < V8.90), SIPROTEC 5 7UT82 (CP150) (All versions < V9.50), SIPROTEC 5 7UT85 (CP200) (All versions), SIPROTEC 5 7UT85 (CP300) (All versions < V9.50), SIPROTEC 5 7UT86 (CP200) (All versions), SIPROTEC 5 7UT86 (CP300) (All versions < V9.50), SIPROTEC 5 7UT87 (CP200) (All versions), SIPROTEC 5 7UT87 (CP300) (All versions < V9.50), SIPROTEC 5 7VE85 (CP300) (All versions < V9.50), SIPROTEC 5 7VK87 (CP200) (All versions), SIPROTEC 5 7VK87 (CP300) (All versions < V9.50), SIPROTEC 5 7VU85 (CP300) (All versions < V9.50), SIPROTEC 5 Communication Module ETH-BA-2EL (Rev.1) (All versions installed on CP200 devices), SIPROTEC 5 Communication Module ETH-BA-2EL (Rev.1) (All versions < V9.50 installed on CP150 and CP300 devices), SIPROTEC 5 Communication Module ETH-BA-2EL (Rev.1) (All versions < V8.89 installed on CP100 devices), SIPROTEC 5 Communication Module ETH-BB-2FO (Rev. 1) (All versions installed on CP200 devices), SIPROTEC 5 Communication Module ETH-BB-2FO (Rev. 1) (All versions < V9.50 installed on CP150 and CP300 devices), SIPROTEC 5 Communication Module ETH-BB-2FO (Rev. 1) (All versions < V8.89 installed on CP100 devices), SIPROTEC 5 Communication Module ETH-BD-2FO (All versions < V9.50), SIPROTEC 5 Compact 7SX800 (CP050) (All versions < V9.50). Affected devices do not properly restrict secure client-initiated renegotiations within the SSL and TLS protocols. This could allow an attacker to create a denial of service condition on the ports 443/tcp and 4443/tcp for the duration of the attack.

MediumCVSS 5.3 · v3.1—No exploit No fix recorded

Published: Dec 13, 2022
Updated: Jun 17, 2026
EPSS: 0.7% · 54th percentile
CWE: CWE-400

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 21 / 40 · 5.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.7%

CNA vs NVD score

NVD: —
CNA · siemens: 5.3; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:T/RC:C

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
siemens	siprotec 5 6md85 firmware	cpe:2.3:o:siemens:siprotec_5_6md85_firmware
siemens	siprotec 5 6md85	cpe:2.3:h:siemens:siprotec_5_6md85
siemens	siprotec 5 6md86 firmware	cpe:2.3:o:siemens:siprotec_5_6md86_firmware
siemens	siprotec 5 6md86	cpe:2.3:h:siemens:siprotec_5_6md86
siemens	siprotec 5 6md89 firmware	cpe:2.3:o:siemens:siprotec_5_6md89_firmware
siemens	siprotec 5 6md89	cpe:2.3:h:siemens:siprotec_5_6md89
siemens	siprotec 5 6mu85 firmware	cpe:2.3:o:siemens:siprotec_5_6mu85_firmware
siemens	siprotec 5 6mu85	cpe:2.3:h:siemens:siprotec_5_6mu85
siemens	siprotec 5 7ke85 firmware	cpe:2.3:o:siemens:siprotec_5_7ke85_firmware
siemens	siprotec 5 7ke85	cpe:2.3:h:siemens:siprotec_5_7ke85
siemens	siprotec 5 7sa82 firmware	cpe:2.3:o:siemens:siprotec_5_7sa82_firmware
siemens	siprotec 5 7sa82	cpe:2.3:h:siemens:siprotec_5_7sa82

and 56 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

siemens siprotec 5 6md85 firmwareall versions
siemens siprotec 5 6md86 firmwareall versions
siemens siprotec 5 6md89 firmwareall versions
siemens siprotec 5 6mu85 firmwareall versions
siemens siprotec 5 7ke85 firmwareall versions
siemens siprotec 5 7sa82 firmwareall versions
siemens siprotec 5 7sa86 firmwareall versions
siemens siprotec 5 7sa87 firmwareall versions
siemens siprotec 5 7sd82 firmwareall versions
siemens siprotec 5 7sd86 firmwareall versions
siemens siprotec 5 7sd87 firmwareall versions
siemens siprotec 5 7sj81 firmwareall versions
siemens siprotec 5 7sj82 firmwareall versions
siemens siprotec 5 7sj85 firmwareall versions
siemens siprotec 5 7sj86 firmwareall versions
siemens siprotec 5 7sk82 firmwareall versions
siemens siprotec 5 7sk85 firmwareall versions
siemens siprotec 5 7sl82 firmwareall versions
siemens siprotec 5 7sl86 firmwareall versions
siemens siprotec 5 7sl87 firmwareall versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (siemens). Independent of NVD's CPE analysis and usually ahead of it.

Siemens SIPROTEC 5 6MD84 (CP300)
- before V9.50affected
Siemens SIPROTEC 5 6MD85 (CP200)
- all versionsaffected
Siemens SIPROTEC 5 6MD85 (CP300)
- before V9.50affected
Siemens SIPROTEC 5 6MD86 (CP200)
- all versionsaffected
Siemens SIPROTEC 5 6MD86 (CP300)
- before V9.50affected
Siemens SIPROTEC 5 6MD89 (CP300)
- before V9.64affected
Siemens SIPROTEC 5 6MU85 (CP300)
- before V9.50affected
Siemens SIPROTEC 5 7KE85 (CP200)
- all versionsaffected
Siemens SIPROTEC 5 7KE85 (CP300)
- before V9.64affected
Siemens SIPROTEC 5 7SA82 (CP100)
- before V8.90affected
Siemens SIPROTEC 5 7SA82 (CP150)
- before V9.50affected
Siemens SIPROTEC 5 7SA84 (CP200)
- all versionsaffected

Same product

siemens: all records

Other highest-scoring records for the same primary product.

CVE-2023-28766A vulnerability has been identified in SIPROTEC 5 6MD85 (CP300) (All versions >= V7.80 < V9.40), SIPROTEC 5 6MD86 (CP300) (All versions >= V
30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: none
Integrity: none
Availability: low · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: None
Availability impact: Low

Weakness class (CWE)

CWE-400 · Uncontrolled Resource Consumption

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

nvd-secondary

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

The bug in code

The whole CWE-400 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1function expand(node) {
2  return node.children.map(expand);
3}

Fixed

1const MAX_DEPTH = 32;
2function expand(node, depth = 0) {
3  if (depth > MAX_DEPTH) throw new Error("too deep");
4  return node.children.map((c) => expand(c, depth + 1));
5}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Endpoint Denial of ServiceT1499

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

cert-portal.siemens.com/productcert/html/ssa-552874.html

Show all references (1 more)

cert-portal.siemens.com/productcert/pdf/ssa-552874.pdf

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records