CVE-2018-15520

Various Lexmark devices have a Buffer Overflow (issue 2 of 2).

Published: 2019-06-28 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-15520 is rated Moderate Risk (62.1/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.19%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2018-15520

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.54% 1.19% +0.64%
2 2025-03-30 1.05% 0.54% -0.51%
3 2025-03-29 — 1.05% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-15520

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2018-15520

Affected software / configurations for CVE-2018-15520

Vendor Product Version Raw CPE
lexmark cx82x_firmware <= cxtpp.052.024 cpe:2.3:o:lexmark:cx82x_firmware:*:*:*:*:*:*:*:*
lexmark cx82x_firmware >= cxtpp.052.200, <= cxtpp.052.204 cpe:2.3:o:lexmark:cx82x_firmware:*:*:*:*:*:*:*:*
lexmark cx860_firmware <= cxtpp.052.024 cpe:2.3:o:lexmark:cx860_firmware:*:*:*:*:*:*:*:*
lexmark cx860_firmware >= cxtpp.052.200, <= cxtpp.052.204 cpe:2.3:o:lexmark:cx860_firmware:*:*:*:*:*:*:*:*
lexmark xc6152_firmware <= cxtpp.052.024 cpe:2.3:o:lexmark:xc6152_firmware:*:*:*:*:*:*:*:*
lexmark xc6152_firmware >= cxtpp.052.200, <= cxtpp.052.204 cpe:2.3:o:lexmark:xc6152_firmware:*:*:*:*:*:*:*:*
lexmark xc8155_firmware <= cxtpp.052.024 cpe:2.3:o:lexmark:xc8155_firmware:*:*:*:*:*:*:*:*
lexmark xc8155_firmware >= cxtpp.052.200, <= cxtpp.052.204 cpe:2.3:o:lexmark:xc8155_firmware:*:*:*:*:*:*:*:*
lexmark xc8160_firmware <= cxtpp.052.024 cpe:2.3:o:lexmark:xc8160_firmware:*:*:*:*:*:*:*:*
lexmark xc8160_firmware >= cxtpp.052.200, <= cxtpp.052.204 cpe:2.3:o:lexmark:xc8160_firmware:*:*:*:*:*:*:*:*
lexmark cx72x_firmware <= cxtat.052.024 cpe:2.3:o:lexmark:cx72x_firmware:*:*:*:*:*:*:*:*
lexmark cx72x_firmware >= cxtat.052.200, <= cxtat.052.204 cpe:2.3:o:lexmark:cx72x_firmware:*:*:*:*:*:*:*:*
lexmark xc41x0_firmware <= cxtat.052.024 cpe:2.3:o:lexmark:xc41x0_firmware:*:*:*:*:*:*:*:*
lexmark xc41x0_firmware >= cxtat.052.200, <= cxtat.052.204 cpe:2.3:o:lexmark:xc41x0_firmware:*:*:*:*:*:*:*:*
lexmark cx92x_firmware <= cxtmh.052.024 cpe:2.3:o:lexmark:cx92x_firmware:*:*:*:*:*:*:*:*
lexmark cx92x_firmware >= cxtmh.052.200, <= cxtmh.052.204 cpe:2.3:o:lexmark:cx92x_firmware:*:*:*:*:*:*:*:*
lexmark xc92x5_firmware <= cxtmh.052.024 cpe:2.3:o:lexmark:xc92x5_firmware:*:*:*:*:*:*:*:*
lexmark xc92x5_firmware >= cxtmh.052.200, <= cxtmh.052.204 cpe:2.3:o:lexmark:xc92x5_firmware:*:*:*:*:*:*:*:*
lexmark mx321_firmware <= mxngm.052.024 cpe:2.3:o:lexmark:mx321_firmware:*:*:*:*:*:*:*:*
lexmark mx321_firmware >= mxngm.052.200, <= mxngm.052.204 cpe:2.3:o:lexmark:mx321_firmware:*:*:*:*:*:*:*:*
lexmark mb2338_firmware <= mxngm.052.024 cpe:2.3:o:lexmark:mb2338_firmware:*:*:*:*:*:*:*:*
lexmark mb2338_firmware >= mxngm.052.200, <= mxngm.052.204 cpe:2.3:o:lexmark:mb2338_firmware:*:*:*:*:*:*:*:*
lexmark mx42x_firmware <= mxtgm.052.024 cpe:2.3:o:lexmark:mx42x_firmware:*:*:*:*:*:*:*:*
lexmark mx42x_firmware >= mxtgm.052.200, <= mxtgm.052.204 cpe:2.3:o:lexmark:mx42x_firmware:*:*:*:*:*:*:*:*
lexmark mx52x_firmware <= mxtgm.052.024 cpe:2.3:o:lexmark:mx52x_firmware:*:*:*:*:*:*:*:*
lexmark mx52x_firmware >= mxtgm.052.200, <= mxtgm.052.204 cpe:2.3:o:lexmark:mx52x_firmware:*:*:*:*:*:*:*:*
lexmark mx622_firmware <= mxtgm.052.024 cpe:2.3:o:lexmark:mx622_firmware:*:*:*:*:*:*:*:*
lexmark mx622_firmware >= mxtgm.052.200, <= mxtgm.052.204 cpe:2.3:o:lexmark:mx622_firmware:*:*:*:*:*:*:*:*
lexmark mb2442_firmware <= mxtgm.052.024 cpe:2.3:o:lexmark:mb2442_firmware:*:*:*:*:*:*:*:*
lexmark mb2442_firmware >= mxtgm.052.200, <= mxtgm.052.204 cpe:2.3:o:lexmark:mb2442_firmware:*:*:*:*:*:*:*:*
lexmark mb2546_firmware <= mxtgm.052.024 cpe:2.3:o:lexmark:mb2546_firmware:*:*:*:*:*:*:*:*
lexmark mb2546_firmware >= mxtgm.052.200, <= mxtgm.052.204 cpe:2.3:o:lexmark:mb2546_firmware:*:*:*:*:*:*:*:*
lexmark mb2650_firmware <= mxtgm.052.024 cpe:2.3:o:lexmark:mb2650_firmware:*:*:*:*:*:*:*:*
lexmark mb2650_firmware >= mxtgm.052.200, <= mxtgm.052.204 cpe:2.3:o:lexmark:mb2650_firmware:*:*:*:*:*:*:*:*
lexmark xm124x_firmware <= mxtgm.052.024 cpe:2.3:o:lexmark:xm124x_firmware:*:*:*:*:*:*:*:*
lexmark xm124x_firmware >= mxtgm.052.200, <= mxtgm.052.204 cpe:2.3:o:lexmark:xm124x_firmware:*:*:*:*:*:*:*:*
lexmark xm3250_firmware <= mxtgm.052.024 cpe:2.3:o:lexmark:xm3250_firmware:*:*:*:*:*:*:*:*
lexmark xm3250_firmware >= mxtgm.052.200, <= mxtgm.052.204 cpe:2.3:o:lexmark:xm3250_firmware:*:*:*:*:*:*:*:*
lexmark mx72x_firmware <= mxtgw.052.024 cpe:2.3:o:lexmark:mx72x_firmware:*:*:*:*:*:*:*:*
lexmark mx72x_firmware >= mxtgw.052.200, <= mxtgw.052.204 cpe:2.3:o:lexmark:mx72x_firmware:*:*:*:*:*:*:*:*
lexmark mx82x_firmware <= mxtgw.052.024 cpe:2.3:o:lexmark:mx82x_firmware:*:*:*:*:*:*:*:*
lexmark mx82x_firmware >= mxtgw.052.200, <= mxtgw.052.204 cpe:2.3:o:lexmark:mx82x_firmware:*:*:*:*:*:*:*:*
lexmark mb2770_firmware <= mxtgw.052.024 cpe:2.3:o:lexmark:mb2770_firmware:*:*:*:*:*:*:*:*
lexmark mb2770_firmware >= mxtgw.052.200, <= mxtgw.052.204 cpe:2.3:o:lexmark:mb2770_firmware:*:*:*:*:*:*:*:*
lexmark xm5370_firmware <= mxtgw.052.024 cpe:2.3:o:lexmark:xm5370_firmware:*:*:*:*:*:*:*:*
lexmark xm5370_firmware >= mxtgw.052.200, <= mxtgw.052.204 cpe:2.3:o:lexmark:xm5370_firmware:*:*:*:*:*:*:*:*
lexmark xm7355_firmware <= mxtgw.052.024 cpe:2.3:o:lexmark:xm7355_firmware:*:*:*:*:*:*:*:*
lexmark xm7355_firmware >= mxtgw.052.200, <= mxtgw.052.204 cpe:2.3:o:lexmark:xm7355_firmware:*:*:*:*:*:*:*:*
lexmark xm7370_firmware <= mxtgw.052.024 cpe:2.3:o:lexmark:xm7370_firmware:*:*:*:*:*:*:*:*
lexmark xm7370_firmware >= mxtgw.052.200, <= mxtgw.052.204 cpe:2.3:o:lexmark:xm7370_firmware:*:*:*:*:*:*:*:*
lexmark cx421_firmware <= cxnzj.052.024 cpe:2.3:o:lexmark:cx421_firmware:*:*:*:*:*:*:*:*
lexmark cx421_firmware >= cxnzj.052.200, <= cxnzj.052.204 cpe:2.3:o:lexmark:cx421_firmware:*:*:*:*:*:*:*:*
lexmark mc2325_firmware <= cxnzj.052.024 cpe:2.3:o:lexmark:mc2325_firmware:*:*:*:*:*:*:*:*
lexmark mc2325_firmware >= cxnzj.052.200, <= cxnzj.052.204 cpe:2.3:o:lexmark:mc2325_firmware:*:*:*:*:*:*:*:*
lexmark mc2425_firmware <= cxnzj.052.024 cpe:2.3:o:lexmark:mc2425_firmware:*:*:*:*:*:*:*:*
lexmark mc2425_firmware >= cxnzj.052.200, <= cxnzj.052.204 cpe:2.3:o:lexmark:mc2425_firmware:*:*:*:*:*:*:*:*
lexmark cx522_firmware <= cxtzj.052.024 cpe:2.3:o:lexmark:cx522_firmware:*:*:*:*:*:*:*:*
lexmark cx522_firmware >= cxtzj.052.200, <= cxtzj.052.204 cpe:2.3:o:lexmark:cx522_firmware:*:*:*:*:*:*:*:*
lexmark cx62x_firmware <= cxtzj.052.024 cpe:2.3:o:lexmark:cx62x_firmware:*:*:*:*:*:*:*:*
lexmark cx62x_firmware >= cxtzj.052.200, <= cxtzj.052.204 cpe:2.3:o:lexmark:cx62x_firmware:*:*:*:*:*:*:*:*
lexmark mc2535_firmware <= cxtzj.052.024 cpe:2.3:o:lexmark:mc2535_firmware:*:*:*:*:*:*:*:*
lexmark mc2535_firmware >= cxtzj.052.200, <= cxtzj.052.204 cpe:2.3:o:lexmark:mc2535_firmware:*:*:*:*:*:*:*:*
lexmark mc2640_firmware <= cxtzj.052.024 cpe:2.3:o:lexmark:mc2640_firmware:*:*:*:*:*:*:*:*
lexmark mc2640_firmware >= cxtzj.052.200, <= cxtzj.052.204 cpe:2.3:o:lexmark:mc2640_firmware:*:*:*:*:*:*:*:*
lexmark xc2235_firmware <= cxtzj.052.024 cpe:2.3:o:lexmark:xc2235_firmware:*:*:*:*:*:*:*:*
lexmark xc2235_firmware >= cxtzj.052.200, <= cxtzj.052.204 cpe:2.3:o:lexmark:xc2235_firmware:*:*:*:*:*:*:*:*
lexmark xc4240_firmware <= cxtzj.052.024 cpe:2.3:o:lexmark:xc4240_firmware:*:*:*:*:*:*:*:*
lexmark xc4240_firmware >= cxtzj.052.200, <= cxtzj.052.204 cpe:2.3:o:lexmark:xc4240_firmware:*:*:*:*:*:*:*:*

References for CVE-2018-15520

cvelogic Threat Intelligence