Buffer overflow in global memory region
ABB is aware of vulnerabilities in the product versions listed below. An update is available that resolves the reported vulnerabilities in the product versions under maintenance. An attacker who successfully exploited one or more of these vulnerabilities could cause the product to stop or make the product inaccessible. Numeric Range Comparison Without Minimum Check vulnerability in ABB Freelance controllers AC 700F (Controller modules), ABB Freelance controllers AC 900F (controller modules).This issue affects: Freelance controllers AC 700F: from 9.0;0 through V9.2 SP2, through Freelance 2013, through Freelance 2013SP1, through Freelance 2016, through Freelance 2016SP1, through Freelance 2019, through Freelance 2019 SP1, through Freelance 2019 SP1 FP1; Freelance controllers AC 900F: Freelance 2013, through Freelance 2013SP1, through Freelance 2016, through Freelance 2016SP1, through Freelance 2019, through Freelance 2019 SP1, through Freelance 2019 SP1 FP1.
- Published
- Aug 7, 2023
- Updated
- Jun 17, 2026
- EPSS
- 0.5% · 39th percentile
- CWE
- CWE-839
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Report tools
Action score
30
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 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
- 7.5
- CNA · ABB
- 8.6
- 1.1 point gap
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| abb | ac700f firmware | cpe:2.3:o:abb:ac700f_firmware |
| abb | ac700f | cpe:2.3:h:abb:ac700f |
| abb | freelance 2013 | cpe:2.3:o:abb:freelance_2013 |
| abb | freelance 2016 | cpe:2.3:o:abb:freelance_2016 |
| abb | freelance 2019 | cpe:2.3:o:abb:freelance_2019 |
| abb | ac900f | cpe:2.3:h:abb:ac900f |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- abb ac700f firmware9.0.0 and later · before 9.2.0
- abb ac700f firmware9.2.0
- abb freelance 2013all versions
- abb freelance 2016all versions
- abb freelance 2019all versions
Versions reported by the vendor
Affected version ranges reported by the assigning authority (ABB). Independent of NVD's CPE analysis and usually ahead of it.
ABB Freelance controllers AC 700F
- 9.0;0 and later · up to and including V9.2 SP2affected
- up to and including Freelance 2013affected
- up to and including Freelance 2013SP1affected
- up to and including Freelance 2016affected
- up to and including Freelance 2016SP1affected
- up to and including Freelance 2019affected
- up to and including Freelance 2019 SP1affected
- up to and including Freelance 2019 SP1 FP1affected
ABB Freelance controllers AC 900F
- up to and including Freelance 2013affected
- up to and including Freelance 2013SP1affected
- up to and including Freelance 2016affected
- up to and including Freelance 2016SP1affected
- up to and including Freelance 2019affected
- up to and including Freelance 2019 SP1affected
- up to and including Freelance 2019 SP1 FP1affected
Same product
abb: all recordsOther highest-scoring records for the same primary product.
- CVE-2023-0426Stack overflow in filename or in boundary30Monitor
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.
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 researchersFinders, 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.
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
The product’s vendor appears in a public program. Matched by name; verify the scope text in the 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
- 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-839 · Numeric Range Comparison Without Minimum CheckCVSS 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.