VulnerabilityPublished 10 Feb 2026

CVE-2026-1997: HP OfficeJet Pro 8730 All-in-One Printer · CWE-346

Affects HP OfficeJet Pro 8730 All-in-One PrinterSource CVE Database V5

Not known to be exploited · CVSS 6.9 Medium : upgrade to <001.2602B when convenient.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 4.0 base score

6.9Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in <001.2602B, <002.2602A, <001.2602A

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: None
User Interaction: None
Vulnerable system confidentiality: None
Vulnerable system integrity: None
Vulnerable system availability: Low
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: None: There is no loss of integrity within the Vulnerable System.
Vulnerable system availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the Vulnerable System are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 10 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade HP OfficeJet Pro to <001.2602B (8730 All-in-One Printer, 8740 All-in-One Printer series, 8730 Mono Printer series, 8210 Printer series) or <002.2602A (7740 Wide Format All-in-One Printer series, 7730 Wide Format All-in-One Printer, 7720 Wide Format All-in-One Printer series) or <001.2602A (8710 All-in-One Printer series).

Affected software

Product	Affected	Fixed in
HP IncHP OfficeJet Pro 8730 All-in-One Printer	Affected < <001.2602B	Fixed in <001.2602B
HP IncHP OfficeJet Pro 8740 All-in-One Printer series	Affected < <001.2602B	Fixed in <001.2602B
HP IncHP OfficeJet Pro 8730 Mono Printer series	Affected < <001.2602B	Fixed in <001.2602B
HP IncHP OfficeJet Pro 8210 Printer series	Affected < <001.2602B	Fixed in <001.2602B
HP IncHP OfficeJet Pro 7740 Wide Format All-in-One Printer series	Affected < <002.2602A	Fixed in <002.2602A
HP IncHP OfficeJet Pro 7730 Wide Format All-in-One Printer	Affected < <002.2602A	Fixed in <002.2602A

AI-suggested

Ensure that CORS remains disabled on all HP OfficeJet Pro 8730 printers unless explicitly required for trusted applications.
If CORS must be enabled, restrict allowed origins to a minimal set of trusted domains using the Embedded Web Server configuration.
Regularly audit printer configurations to detect unauthorized changes to CORS settings or other security parameters.
Implement network segmentation to isolate printers from sensitive network segments, limiting access to the EWS interface to authorized personnel only.
Monitor network traffic for unusual access patterns to printer web interfaces, which may indicate exploitation attempts.
Stay informed about HP firmware updates and apply patches promptly once available to address this or related vulnerabilities.
Educate IT and security teams about the risks of enabling web interface features like CORS without proper validation.
Employ strong authentication and access controls on management interfaces to prevent unauthorized administrative changes.
Consider disabling or restricting web management interfaces if not required for daily operations.
Integrate printer security into broader organizational vulnerability management and incident response processes.

Description

Certain HP OfficeJet Pro printers may expose information if Cross‑Origin Resource Sharing (CORS) is misconfigured, potentially allowing unauthorized web origins to access device resource. CORS is disabled by default on Pro‑class devices and can only be enabled by an administrator through the Embedded Web Server (EWS). Keeping CORS disabled unless explicitly required helps ensure that only trusted solutions can interact with the device.

Impact

For European organizations, this vulnerability could lead to unauthorized disclosure of sensitive information stored or processed by the affected printers. This may include configuration details, print job data, or network information that could be leveraged for further attacks. The impact is particularly relevant for organizations with strict data privacy requirements under regulations such as GDPR, where unauthorized data exposure could result in compliance violations and reputational damage. Additionally, attackers gaining insights into device configurations might use this information to facilitate lateral movement within corporate networks. Although the vulnerability does not directly allow code execution or denial of service, the information leakage could be a stepping stone for more sophisticated attacks. Organizations relying heavily on HP OfficeJet Pro 8730 printers in critical environments such as government, finance, healthcare, or manufacturing sectors are at higher risk. The ease of exploitation without authentication increases the threat level, especially if CORS is enabled inadvertently or without proper restrictions. Network segmentation and monitoring are crucial to limit exposure. The absence of known exploits suggests a window of opportunity for defenders to remediate before active attacks emerge.

Summary

CVE-2026-1997 identifies a vulnerability categorized under CWE-346 (Origin Validation Error) in the HP OfficeJet Pro 8730 All-in-One Printer. The issue arises from a misconfiguration of Cross-Origin Resource Sharing (CORS) settings within the printer's Embedded Web Server (EWS). CORS is a security feature implemented in web browsers to control how resources are shared between different origins. In this context, if CORS is enabled improperly on the printer, it may allow unauthorized web origins to access device resources that should be restricted. This could lead to information disclosure, as unauthorized websites could retrieve sensitive data from the printer without authentication. By default, HP disables CORS on Pro-class devices, and enabling it requires administrative action through the EWS interface. The vulnerability does not require user interaction, authentication, or elevated privileges to exploit, and it is remotely exploitable over the network. The CVSS v4.0 score of 6.9 reflects a medium severity, primarily due to the potential for information exposure without direct impact on device integrity or availability. No public exploits or patches are currently known, emphasizing the importance of preventive configuration management. The vulnerability highlights the risks associated with improper origin validation and the need for strict access controls on networked devices with web interfaces.

CWE-346Origin Validation Error (opens in a new tab)
Class weaknessOWASP Top 10 A07:2025: Authentication Failures (opens in a new tab)
The product does not properly verify that the source of data or communication is valid.
OWASP Cheat Sheets
OWASP Authentication (opens in a new tab)
OWASP ASVS 4.0.3
V14.5.2 (opens in a new tab)
V14.5.3 (opens in a new tab)
V1.4.4 (opens in a new tab)
Attack patterns
JSON Hijacking (aka JavaScript Hijacking) (opens in a new tab)
Cache Poisoning (opens in a new tab)
DNS Cache Poisoning (opens in a new tab)
Exploit Script-Based APIs (opens in a new tab)
Application API Message Manipulation via Man-in-the-Middle (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

support.hp.com/us-en/document/ish_14051823-14051849-16/hpsbpi04086 (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 10 Feb 2026, 19:31 UTC

WeaknessesCWE-346

Technical details

References

Community reviews

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