HOMEVULNERABILITIESCVE-2021-35449
HIGH

CVE-2021-35449

CWE-732Published: July 19, 2021· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

The Lexmark Universal Print Driver version 2.15.1.0 and below, G2 driver 2.7.1.0 and below, G3 driver 3.2.0.0 and below, and G4 driver 4.2.1.0 and below are affected by a privilege escalation vulnerability. A standard low priviliged user can use the driver to execute a DLL of their choosing during the add printer process, resulting in escalation of privileges to SYSTEM.

NVD Source

Technical Analysis

CVE-2021-35449 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

lexmark4 product(s)
g2 driverg3 driverg4 driveruniversal print driver
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://packetstormsecurity.com/files/163811/Lexmark-Driver-Privilege-Escalation.html
ADVISORYhttp://support.lexmark.com/alerts/
ADVISORYhttps://raw.githubusercontent.com/jacob-baines/vuln_disclosure/main/vuln_2021_02.txt
ADVISORYhttp://packetstormsecurity.com/files/163811/Lexmark-Driver-Privilege-Escalation.html
ADVISORYhttp://support.lexmark.com/alerts/
ADVISORYhttps://raw.githubusercontent.com/jacob-baines/vuln_disclosure/main/vuln_2021_02.txt

All References (6)

→
http://packetstormsecurity.com/files/163811/Lexmark-Driver-Privilege-Escalation.htmlExploit · Third Party Advisory · VDB Entry
→
http://support.lexmark.com/alerts/Vendor Advisory
→
https://raw.githubusercontent.com/jacob-baines/vuln_disclosure/main/vuln_2021_02.txtThird Party Advisory
→
http://packetstormsecurity.com/files/163811/Lexmark-Driver-Privilege-Escalation.htmlExploit · Third Party Advisory · VDB Entry
→
http://support.lexmark.com/alerts/Vendor Advisory
→
https://raw.githubusercontent.com/jacob-baines/vuln_disclosure/main/vuln_2021_02.txtThird Party Advisory

Quick Facts

CVE IDCVE-2021-35449
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-732
CISA KEVNo
Affected1 vendor(s)
PublishedJul 19, 2021

Related CVEs (CWE-732)

CVE-2025-12004
10.0
CVE-2026-9508
10.0
CVE-2014-125121
10.0
CVE-2024-5618
9.9
CVE-2025-49131
9.9
CVE-2026-32048
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-35449 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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