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Noroxi
CVE-2023-37482· NVD / CVE Program· CNA siemens

The login functionality of the web server in affected devices does not normalize the response times of login attempts.

Noroxi assessment

Priority: Monitor (action score 27/100)

  • 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: 0.51% (FIRST EPSS).
  • 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 CISA the attack is automatable: targets can be found by mass scanning.
  • 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

The login functionality of the web server in affected devices does not normalize the response times of login attempts. An unauthenticated remote attacker could exploit this side-channel information to distinguish between valid and invalid usernames.

MediumCVSS 6.9 · v4.0—No exploit No fix recorded
Published
Feb 11, 2025
Updated
Jun 17, 2026
EPSS
0.5% · 42th percentile

Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
27 / 40 · 6.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

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:L/I:N/A:N

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.

Follow CVE-2023-37482

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

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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.

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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.

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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 SIMATIC Drive Controller CPU 1504D TF

    • V3.1.0 and later · before V3.1.2affected

  • Siemens SIMATIC Drive Controller CPU 1507D TF

    • V3.1.0 and later · before V3.1.2affected

  • Siemens SIMATIC ET 200SP CPU 1510SP F-1 PN

    • V3.1.0 and later · before V3.1.2affected

  • Siemens SIMATIC ET 200SP CPU 1510SP-1 PN

    • V3.1.0 and later · before V3.1.2affected

  • Siemens SIMATIC ET 200SP CPU 1512SP F-1 PN

    • V3.1.0 and later · before V3.1.2affected

  • Siemens SIMATIC ET 200SP CPU 1512SP-1 PN

    • V3.1.0 and later · before V3.1.2affected

  • Siemens SIMATIC ET 200SP CPU 1514SP F-2 PN

    • V3.1.0 and later · before V3.1.2affected

  • Siemens SIMATIC ET 200SP CPU 1514SP-2 PN

    • V3.1.0 and later · before V3.1.2affected

  • Siemens SIMATIC ET 200SP CPU 1514SPT F-2 PN

    • V3.1.0 and later · before V3.1.2affected

  • Siemens SIMATIC ET 200SP CPU 1514SPT-2 PN

    • V3.1.0 and later · before V3.1.2affected

  • Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)

    • V30.1.0 and later · before V31.1.4affected

  • Siemens SIMATIC S7-1200 CPU 1211C AC/DC/Rly

    • before V4.7affected

Same product

siemens: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-63354Affected devices do not properly validate and sanitize visual marker data contained in imported CSV trace files before rendering it on the T
    37Monitor
  • CVE-2026-63353Affected devices do not properly sanitize comment fields contained in imported trace files before rendering them on the Trace page.
    37Monitor
  • CVE-2026-63350Affected devices do not properly restrict executable content contained in imported trace files.
    37Monitor
  • CVE-2026-25787Affected devices do not properly validate and sanitize Technology Object (TO) name rendered on the "Motion Control Diagnostics" page of the
    37Monitor
  • CVE-2026-25786Affected devices do not properly validate and sanitize PLC/station name rendered on the "communication" parameters page of the web interface
    37Monitor
  • CVE-2025-40943Affected devices do not properly sanitize contents of trace files.
    37Monitor

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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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
Integrity
Availability
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
X

Weakness class (CWE)

CWE-203 · Observable Discrepancy

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

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

ATT&CK techniques

—

Change log

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

References

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

All records