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NVD / CVE Program· CNA CERTVDE

CVE-2024-26000: PHOENIX CONTACT: Out of bounds read only memory access

HighCVSS 7.5 · v3.1—No exploit No fix recorded

Noroxi assessment

Priority: Monitor (action score 30/100)

  • 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: 0.81% (FIRST EPSS); higher than 57.4% 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

An unauthenticated remote attacker can read memory out of bounds due to improper input validation in the MQTT stack. The brute force attack is not always successful because of memory randomization.

Published
Mar 12, 2024
Updated
Jun 17, 2026
EPSS
0.8% · 57th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.8%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.5
CNA · CERTVDE
5.9
1.6 point gap

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/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-2024-26000

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

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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.

VendorProduct
phoenixcontactcharx sec-3000 firmware
phoenixcontactcharx sec-3000
phoenixcontactcharx sec-3050 firmware
phoenixcontactcharx sec-3050
phoenixcontactcharx sec-3100 firmware
phoenixcontactcharx sec-3100
phoenixcontactcharx sec-3150 firmware
phoenixcontactcharx sec-3150

Versions reported by the vendor

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

  • PHOENIX CONTACT CHARX SEC-3000

    • up to and including 1.5.0affected · semver

  • PHOENIX CONTACT CHARX SEC-3050

    • up to and including 1.5.0affected · semver

  • PHOENIX CONTACT CHARX SEC-3100

    • up to and including 1.5.0affected · semver

  • PHOENIX CONTACT CHARX SEC-3150

    • up to and including 1.5.0affected · semver
Affected versions · NVD (4)

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

  • phoenixcontact charx sec-3000 firmwarebefore 1.5.1
  • phoenixcontact charx sec-3050 firmwarebefore 1.5.1
  • phoenixcontact charx sec-3100 firmwarebefore 1.5.1
  • phoenixcontact charx sec-3150 firmwarebefore 1.5.1

Same product

phoenixcontact: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-25270Remote Code Execution via Unauthenticated Configuration Manipulation
    39Monitor
  • CVE-2024-6788Phoenix Contact: update feature from CHARX controller can be used to reset a low privilege user password
    39Monitor
  • CVE-2024-26001PHOENIX CONTACT: Out of bounds write only memory access
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2024-25998Mar 12, 2024 · PHOENIX CONTACT: Command injection in the OCPP Service
    29Monitor
  • ← EarlierCVE-2024-25999Mar 12, 2024 · PHOENIX CONTACT: Privilege escalation in the OCPP agent service
    31Monitor
  • Later →CVE-2024-26002Mar 12, 2024 · PHOENIX CONTACT: File ownership manipulation in CHARX Series
    31Monitor

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.

Credits

All researchers

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

Variant candidates

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

  • CVE-2024-260030 days apartPHOENIX CONTACT: DoS of the control agent in CHARX Series
    30Monitor

Not on record for this CVE: EPSS history · patch commit or PR link · public bounty program.

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
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

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

nvd-primary

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

—

References

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

All records