CVE-2019-9933

CVE-2019-9933 is a critical-severity vulnerability in Lexmark Cs31x Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

• Severity: Critical (CVSS 3.x base score 9.8)
• CVSS v2: 10.0
• EPSS exploit prediction: 2% (71st percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Lexmark Cs31x Firmware
• Published: 2019-08-28
• Last modified: 2026-06-17

Description

Various Lexmark products have a Buffer Overflow (issue 3 of 3).

Frequently asked questions

What is CVE-2019-9933?

Various Lexmark products have a Buffer Overflow (issue 3 of 3).

How severe is CVE-2019-9933?

CVE-2019-9933 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-9933 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-9933?

CVE-2019-9933 primarily affects Lexmark Cs31x Firmware. In total, 71 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-9933?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-9933 published?

CVE-2019-9933 was published on 2019-08-28 and last updated on 2026-06-17.

References

• http://support.lexmark.com/index?page=content&id=TE920&locale=EN&userlocale=EN_US

Affected products (71)

• cpe:2.3:o:lexmark:cs31x_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:cs41x_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:cx310_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms310_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms312_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms317_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms410_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:m1140_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms315_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms415_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms417_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms51x_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms610dn_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms617_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:m1145_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:m3150dn_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms71x_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:m5163dn_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms810_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms811_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms812_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms817_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms818_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms810de_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:m5155_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:m5163_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms812de_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:m5170_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:ms91x_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:mx31x_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:xm1135_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:mx410_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:mx510_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:mx511_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:mx610_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:mx611_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:xm3150_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:mx71x_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:mx81x_firmware:*:*:*:*:*:*:*:*
• cpe:2.3:o:lexmark:xm51xx_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Lexmark Cs31x Firmware

• CVE-2019-9932 — Critical (CVSS 9.8): Various Lexmark products have a Buffer Overflow (issue 2 of 3).
• CVE-2019-9930 — Critical (CVSS 9.8): Various Lexmark products have an Integer Overflow.
• CVE-2019-10058 — Critical (CVSS 9.1): Various Lexmark products have Incorrect Access Control.
• CVE-2019-9931 — High (CVSS 7.5): Various Lexmark printers contain a denial of service vulnerability in the SNMP service that can be exploited to crash…
• CVE-2019-10057 — Medium (CVSS 6.5): Various Lexmark products have CSRF.
• CVE-2020-10094 — Medium (CVSS 5.4): A cross-site scripting (XSS) vulnerability in Lexmark CS31x before LW74.VYL.P273; CS41x before LW74.VY2.P273; CS51x…

All CVEs affecting Lexmark Cs31x Firmware →

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Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →