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CVE-2019-6327· NVD / CVE Program· CNA hp

HP Color LaserJet Pro M280-M281 Multifunction Printer series (before v.

HP Color LaserJet Pro M280-M281 Multifunction Printer series (before v. 20190419), HP LaserJet Pro MFP M28-M31 Printer series (before v. 20190426) may have an IPP Parser potentially vulnerable to Buffer Overflow.

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded
Published
Jun 17, 2019
Updated
Jun 16, 2026
EPSS
2.4% · 83th percentile
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Report tools

JSON

Action score

40

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.4%

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

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Affected systems

VendorProduct
hplaserjet pro m280-m281 t6b80a firmware
hplaserjet pro m280-m281 t6b80a
hplaserjet pro m280-m281 t6b83a firmware
hplaserjet pro m280-m281 t6b83a
hplaserjet pro m280-m281 t6b81a firmware
hplaserjet pro m280-m281 t6b81a
hplaserjet pro m280-m281 t6b82a firmware
hplaserjet pro m280-m281 t6b82a
hplaserjet pro mfp m28-m31 w2g54a firmware
hplaserjet pro mfp m28-m31 w2g54a
hplaserjet pro mfp m28-m31 w2g55a firmware
hplaserjet pro mfp m28-m31 w2g55a

and 8 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • hp laserjet pro m280-m281 t6b80a firmwarebefore 20190419
  • hp laserjet pro m280-m281 t6b81a firmwarebefore 20190419
  • hp laserjet pro m280-m281 t6b82a firmwarebefore 20190419
  • hp laserjet pro m280-m281 t6b83a firmwarebefore 20190419
  • hp laserjet pro mfp m28-m31 w2g54a firmwarebefore 20190426
  • hp laserjet pro mfp m28-m31 w2g55a firmwarebefore 20190426
  • hp laserjet pro mfp m28-m31 y5s50a firmwarebefore 20190426
  • hp laserjet pro mfp m28-m31 y5s53a firmwarebefore 20190426
  • hp laserjet pro mfp m28-m31 y5s54a firmwarebefore 20190426
  • hp laserjet pro mfp m28-m31 y5s55a firmwarebefore 20190426

Versions reported by the vendor

Affected version ranges reported by the assigning authority (hp). Independent of NVD's CPE analysis and usually ahead of it.

  • n/a HP Color LaserJet Pro M280-M281 Multifunction Printer series; HP LaserJet Pro MFP M28-M31 Printer series

    • before 20190419, before 20190426affected

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

The bug in code

The whole CWE-120 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

c
char buf[256];memcpy(buf, pkt->data, pkt->len);

Fixed

c
char buf[256];if (pkt->len > sizeof(buf)) {  return -EINVAL;}memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records