Certain HP LaserJet Pro, HP LaserJet…: Stack-based Buffer Overflow
CVE-2025-26507 is a critical-severity stack-based buffer overflow vulnerability in Certain HP LaserJet Pro, HP LaserJet Enterprise, HP LaserJet Managed Printers from HP, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Certain HP LaserJet Pro, HP LaserJet Enterprise, HP LaserJet Managed Printers 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 0.94% chance of exploitation within 30 days, higher than 61% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update Futuresmart 3 to 2309118_002276 or 2309118_002274 or 2309118_002275, whichever matches your release line, or a later version.
- Update Futuresmart 5 to 2508402_000067 or 2508402_000106 or 2508402_000090 or 2508125_000009, whichever matches your release line, or a later version.
- Update Futuresmart 4 to 2411278_068111 or 2411278_068112 or 2411278_068114 or 2411278_068113, whichever matches your release line, 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 | Certain HP LaserJet Pro, HP LaserJet Enterprise, HP LaserJet Managed Printers | See HP security bulletin reference for affected versions | Not stated |
| HP | Futuresmart 3 | before 2309118_002276; before 2309118_002274; before 2309118_002275 | 2309118_002276, 2309118_002274, 2309118_002275 |
| HP | Futuresmart 5 | before 2508402_000067; before 2508402_000106; before 2508402_000090; before 2508125_000009; before 2508402_000058; before 2508402_000098; before 2508402_000072; before 2508402_000117; and 32 more ranges | 2508402_000067, 2508402_000106, 2508402_000090, 2508125_000009, 2508402_000058, 2508402_000098 |
| HP | Futuresmart 4 | before 2411278_068111; before 2411278_068112; before 2411278_068114; before 2411278_068113 | 2411278_068111, 2411278_068112, 2411278_068114, 2411278_068113 |
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
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 6.3 | Medium | CNA (hp.com) |
| CVSS 3.1 | 9.8 | Critical | NVD |
Official description
Certain HP LaserJet Pro, HP LaserJet Enterprise, and HP LaserJet Managed Printers may potentially be vulnerable to Remote Code Execution and Elevation of Privilege when processing a PostScript print job.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Stack-based Buffer Overflow
The product writes past the end of a buffer that was allocated on the stack.
How developers prevent this class of flaw
- Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking. D3-SFCV (Stack Frame Canary Validation) from D3FEND discusses canary-based detection in detail.
- Use an abstraction library to abstract away risky APIs. Not a complete solution.
- Implement and perform bounds checking on input.
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 vulnerabilities in Certain HP LaserJet Pro, HP LaserJet Enterprise, HP LaserJet Managed Printers
- 9.8 Critical severity
- 9.8 Critical severity
Recent Stack-based Buffer Overflow vulnerabilities
- 8.8 High severity
- 8.1 High severity
- 8.8 High severity
- 8.0 High severity
- 7.2 High severity
- 7.2 High severity
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