HP Linux Imaging and Printing Software: Improper Verification of Cryptographic Signature
CVE-2025-43023 is a critical-severity improper verification of cryptographic signature vulnerability in HP Linux Imaging and Printing Software from HP, with a CVSS 3.1 base score of 9.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected HP Linux Imaging and Printing Software versions: See HP security bulletin reference for affected versions. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.29% chance of exploitation within 30 days, which is low compared with other CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update Linux Imaging And Printing to 3.25.2 or a later version.
- Read the advisory on support.hp.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
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| HP | HP Linux Imaging and Printing Software | See HP security bulletin reference for affected versions | Not stated |
| HP | Linux Imaging And Printing | before 3.25.2 | 3.25.2 |
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
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 5.9 | Medium | CNA (hp.com) |
| CVSS 3.1 | 9.1 | Critical | NVD |
Official description
A potential security vulnerability has been identified in the HP Linux Imaging and Printing Software documentation. This potential vulnerability is due to the use of a weak code signing key, Digital Signature Algorithm (DSA).
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
More Improper Verification of Cryptographic Signature vulnerabilities (CWE-347)
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
Third-party and government advisories
- openwall.com/lists/oss-security/2025/08/22/4Mailing List, Third Party Advisory
Other vulnerabilities in HP Linux Imaging and Printing Software
- 7.8 High severity
- 9.8 Critical severity
Recent Improper Verification of Cryptographic Signature vulnerabilities
- 8.4 High severity
- 8.1 High severity
- 9.3 Critical severity
- 4.6 Medium severity
- 7.5 High severity
- 8.7 High severity
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