700 Series: Storing Passwords in a Recoverable Format
CVE-2026-28745 is a high-severity storing passwords in a recoverable format vulnerability in 700 Series from Red Lion Controls, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists versions Firmware Versions 3.11.0, Bootloader Versions 2.0.6.1 as the first without the flaw, so updating 700 Series to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.22% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update 700 Series to Firmware Versions 3.11.0 or Bootloader Versions 2.0.6.1, whichever matches your release line, or a later version.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Red Lion Controls | 700 Series | before Firmware Versions 3.11.0; before Bootloader Versions 2.0.6.1 | Firmware Versions 3.11.0, Bootloader Versions 2.0.6.1 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by CNA (hq.dhs.gov).
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 9.3 | Critical | CNA (hq.dhs.gov) |
| CVSS 3.1 | 7.5 | High | CNA (hq.dhs.gov) |
Official description
Usernames and passwords, including the default credentials, are stored in the configuration file using weak encryption. If the default credentials are known by a malicious user, they could obtain other credentials on the system.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Storing Passwords in a Recoverable Format
The storage of passwords in a recoverable format makes them subject to password reuse attacks by malicious users. In fact, it should be noted that recoverable encrypted passwords provide no significant benefit over plaintext passwords since they are subject not only to reuse by malicious attackers but also by malicious insiders. If a system administrator can recover a password directly, or use a brute force search on the available information, the administrator can use the password on other accounts.
How developers prevent this class of flaw
- Use strong, non-reversible encryption to protect stored passwords.
More Storing Passwords in a Recoverable Format vulnerabilities (CWE-257)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
Other vulnerabilities in 700 Series
- 8.1 High severity
- 8.3 High severity
- 8.1 High severity
- 7.1 High severity
Recent Storing Passwords in a Recoverable Format vulnerabilities
- 7.5 High severity
- 9.1 Critical severity
- 7.5 High severity
- 7.0 High severity
- 8.4 High severity
- 8.5 High severity
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