NetWorker: Selection of Less-Secure Algorithm During Negotiation
CVE-2025-36582 is a high-severity selection of less-secure algorithm during negotiation vulnerability in NetWorker from Dell, 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 version 19.13 as the first without the flaw, so updating NetWorker to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.26% 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 NetWorker to 19.13 or a later version.
- Read the advisory on dell.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
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
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 4.8 | Medium | CNA (emc.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
Dell NetWorker, versions 19.12.0.1 and prior, contains a Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade') vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Information disclosure.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Selection of Less-Secure Algorithm During Negotiation
A protocol or its implementation supports interaction between multiple actors and allows those actors to negotiate which algorithm should be used in a protection mechanism such as encryption or authentication, but it does not select the strongest algorithm that is available to both parties.
More Selection of Less-Secure Algorithm During Negotiation vulnerabilities (CWE-757)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in NetWorker
- 7.8 High severity
- 7.8 High severity
- 7.5 High severity
- 8.8 High severity
- 9.8 Critical severity
Recent Selection of Less-Secure Algorithm During Negotiation vulnerabilities
- 8.3 High severity
- 9.1 Critical severity
- 9.1 Critical severity
- 8.1 High severity
- 7.8 High severity
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