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NVD / CVE Program· CNA CERTVDE

CVE-2022-22519: Special HTTP(s) Requests can cause a buffer-read causing a crash of the webserver and the runtime system.

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 1.6% (FIRST EPSS); higher than 77.1% 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 remote, unauthenticated attacker can send a specific crafted HTTP or HTTPS requests causing a buffer over-read resulting in a crash of the webserver of the CODESYS Control runtime system.

HighCVSS 7.5 · v3.1—No exploit No fix recorded
Published
Apr 7, 2022
Updated
Jun 17, 2026
EPSS
1.6% · 77th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 1.6%

CNA vs NVD score

NVD
7.5
CNA · CERTVDE
7.5
agree

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-2022-22519

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
codesyscontrol for beaglebone sl
codesyscontrol for beckhoff cx9020
codesyscontrol for empc-a\/imx6 sl
codesyscontrol for iot2000 sl
codesyscontrol for linux sl
codesyscontrol for pfc100 sl
codesyscontrol for pfc200 sl
codesyscontrol for plcnext sl
codesyscontrol for raspberry pi sl
codesyscontrol for wago touch panels 600 sl
codesyscontrol rte sl
codesyscontrol rte sl \(for beckhoff cx\)

and 6 more

Affected versions

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

  • codesys control for beaglebone slbefore 4.5.0.0
  • codesys control for beckhoff cx9020before 4.5.0.0
  • codesys control for empc-a/imx6 slbefore 4.5.0.0
  • codesys control for iot2000 slbefore 4.5.0.0
  • codesys control for linux slbefore 4.5.0.0
  • codesys control for pfc100 slbefore 4.5.0.0
  • codesys control for pfc200 slbefore 4.5.0.0
  • codesys control for plcnext slbefore 4.5.0.0
  • codesys control for raspberry pi slbefore 4.5.0.0
  • codesys control for wago touch panels 600 slbefore 4.5.0.0
  • codesys control rte slbefore 3.5.18.0
  • codesys control rte sl (for beckhoff cx)before 3.5.18.0
  • codesys control runtime system toolkitbefore 3.5.18.0
  • codesys control win slbefore 3.5.18.0
  • codesys development systembefore 3.5.18.0
  • codesys embedded target visu toolkitbefore 3.5.18.0
  • codesys hmi slbefore 3.5.18.0
  • codesys remote target visu toolkitbefore 3.5.18.0

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.

  • CODESYS CODESYS Control for BeagleBone SL

    • V4.5.0.0 and later · before V4.5.0.0affected

  • CODESYS CODESYS Control for Beckhoff CX9020 SL

    • V4.5.0.0 and later · before V4.5.0.0affected

  • CODESYS CODESYS Control for emPC-A/iMX6 SL

    • V4.5.0.0 and later · before V4.5.0.0affected

  • CODESYS CODESYS Control for IOT2000 SL

    • V4.5.0.0 and later · before V4.5.0.0affected

  • CODESYS CODESYS Control for Linux SL

    • V4.5.0.0 and later · before V4.5.0.0affected

  • CODESYS CODESYS Control for PFC100 SL

    • V4.5.0.0 and later · before V4.5.0.0affected

  • CODESYS CODESYS Control for PFC200 SL

    • V4.5.0.0 and later · before V4.5.0.0affected

  • CODESYS CODESYS Control for PLCnext SL

    • V4.5.0.0 and later · before V4.5.0.0affected

  • CODESYS CODESYS Control for Raspberry Pi SL

    • V4.5.0.0 and later · before V4.5.0.0affected

  • CODESYS CODESYS Control for WAGO Touch Panels 600 SL

    • V4.5.0.0 and later · before V4.5.0.0affected

  • CODESYS CODESYS Control RTE (for Beckhoff CX) SL

    • V3.5.18.0 and later · before V3.5.18.0affected

  • CODESYS CODESYS Control RTE (SL)

    • V3.5.18.0 and later · before V3.5.18.0affected

Same product

codesys: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-9010An issue was discovered in 3S-Smart CODESYS V3 products.
    40Plan
  • CVE-2018-10612In 3S-Smart Software Solutions GmbH CODESYS Control V3 products prior to version 3.5.14.0, user access management and communication encrypti
    39Monitor
  • CVE-2022-47379CODESYS: Multiple products prone to out-of-bounds write
    36Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2022-22517Apr 7, 2022 · Communication Components in multiple CODESYS products vulnerable to communication channel disruption
    30Monitor
  • ← EarlierCVE-2022-22518Apr 7, 2022 · A bug in the CODESYS V3 CmpUserMgr component fails to correctly apply a security policy.
    26Monitor
  • Later →CVE-2022-4224Mar 23, 2023 · CODESYS: Exposure of Resource to Wrong Sphere in CODESYS V3
    35Monitor

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
high · 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
High

Weakness class (CWE)

CWE-126 · Buffer Over-read

CVSS vector

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

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.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

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