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CVE-2019-9934· NVD / CVE Program· CNA mitre

Various Lexmark products have Incorrect Access Control (issue 1 of 2).

MediumCVSS 5.3 · v3.0—No exploit No fix recorded
Published
Aug 28, 2019
Updated
Jun 16, 2026
EPSS
0.8% · 56th percentile
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Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.8%

Affected systems

VendorProduct
lexmarkcs31x firmware
lexmarkcs31x
lexmarkcs41x firmware
lexmarkcs41x
lexmarkcx310 firmware
lexmarkcx310
lexmarkms310 firmware
lexmarkms310
lexmarkms312 firmware
lexmarkms312
lexmarkms317 firmware
lexmarkms317

and 38 more

Affected versions

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

  • lexmark cs31x firmwareup to lw71.vyl.p229 inclusive
  • lexmark cs41x firmwareup to lw71.vy2.p229 inclusive
  • lexmark cx310 firmwareup to lw71.gm2.p229 inclusive
  • lexmark m1140 firmwareup to lw71.prl.p229 inclusive
  • lexmark m1145 firmwareup to lw71.pr2.p229 inclusive
  • lexmark m3150dn firmwareup to lw71.pr2.p229 inclusive
  • lexmark m5163dn firmwareup to lw71.dn2.p229 inclusive
  • lexmark ms310 firmwareup to lw71.prl.p229 inclusive
  • lexmark ms312 firmwareup to lw71.prl.p229 inclusive
  • lexmark ms315 firmwareup to lw71.tl2.p229 inclusive
  • lexmark ms317 firmwareup to lw71.prl.p229 inclusive
  • lexmark ms410 firmwareup to lw71.prl.p229 inclusive
  • lexmark ms415 firmwareup to lw71.tl2.p229 inclusive
  • lexmark ms417 firmwareup to lw71.tl2.p229 inclusive
  • lexmark ms51x firmwareup to lw71.pr2.p229 inclusive
  • lexmark ms610dn firmwareup to lw71.pr2.p229 inclusive
  • lexmark ms617 firmwareup to lw71.pr2.p229 inclusive
  • lexmark ms71x firmwareup to lw71.dn2.p229 inclusive
  • lexmark ms810 firmwareup to lw71.dn2.p229 inclusive
  • lexmark ms811 firmwareup to lw71.dn2.p229 inclusive

Same product

lexmark: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-9933Various Lexmark products have a Buffer Overflow (issue 3 of 3).
    39Monitor
  • CVE-2019-9932Various Lexmark products have a Buffer Overflow (issue 2 of 3).
    39Monitor
  • CVE-2019-9930Various Lexmark products have an Integer Overflow.
    39Monitor
  • CVE-2019-10058Various Lexmark products have Incorrect Access Control.
    36Monitor
  • CVE-2019-9931Various Lexmark printers contain a denial of service vulnerability in the SNMP service that can be exploited to crash the device.
    30Monitor
  • CVE-2019-10057Various Lexmark products have CSRF.
    26Monitor

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
low · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-306 · Missing Authentication for Critical Function

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

nvd-primary

Root cause

A function added for development or support ships to production without authentication. It often relies on the assumption that it is “only reachable from the internal network.”

The bug in code

The whole CWE-306 class

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

Vulnerable

ts
// Added for the support teamapp.post("/maintenance/reset", resetDevice);

Fixed

ts
if (config.maintenanceEnabled) {  app.post(    "/maintenance/reset",    requireSession, requireRole("admin"), resetDevice  );}

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

—

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

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