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CVE-2018-15520

31
FAUCET Score

CVE-2018-15520 describes a critical buffer overflow vulnerability (issue 2 of 2) affecting various Lexmark devices. With a CVSS score of 9.8, this flaw is easily exploitable over the network without user interaction, allowing for complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= cxtpp.052.024CPE matchmatch criteria
cpe:2.3:o:lexmark:cx82x_firmware:*:*:*:*:*:*:*:*
>= cxtpp.052.200, <= cxtpp.052.204CPE matchmatch criteria
cpe:2.3:o:lexmark:cx82x_firmware:*:*:*:*:*:*:*:*
<= cxtpp.052.024CPE matchmatch criteria
cpe:2.3:o:lexmark:cx860_firmware:*:*:*:*:*:*:*:*
>= cxtpp.052.200, <= cxtpp.052.204CPE matchmatch criteria
cpe:2.3:o:lexmark:cx860_firmware:*:*:*:*:*:*:*:*
<= cxtpp.052.024CPE matchmatch criteria
cpe:2.3:o:lexmark:xc6152_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.19%
Probability of exploitation in next 30 days
EPSS Percentile
64.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0119 is in the 50th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

support.lexmark.com / index
Vendor Advisory