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🛡️ CVE-2023-0426 — ac700f-firmware

🟠 CVSS 8.6 — High ✅ No Known Exploit CWE-121 NVD
8.6
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Stack-based Buffer Overflow vulnerability in ABB Freelance controllers AC 700F (conroller 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: 

through Freelance 2013, through Freelance 2013SP1, through Freelance 2016, through Freelance 2016SP1, through Freelance 2019, through Freelance 2019 SP1, through Freelance 2019 SP1 FP1.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
  • Integrity impact: Low — limited, and the attacker does not choose what is affected.
  • Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2023-0426 is classified as CWE-121: Stack-based Buffer Overflow. An oversized write to a stack buffer overwrites saved state such as return addresses, which can redirect execution.

Affected software

CVE-2023-0426 is recorded against 4 packages.

  • ac700f-firmware
  • freelance-2013
  • freelance-2016
  • freelance-2019

Timeline and source

Published on 7 August 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

search.abb.com
search.abb.com

Other advisories for this package

ac700f-firmware has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-121: Stack-based Buffer Overflow) in other software:

Details

Severity HIGH
CVSS Score 8.6
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CWE CWE-121
Public Exploit ✅ No
Source NVD
Published 2023-08-07
Updated 2026-08-20
Modified 2026-06-17

Affected Packages

Software From version Fixed in
ac700f-firmware — —
freelance-2013 — —
freelance-2016 — —
freelance-2019 — —

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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