CVE-2021-44738
CRITICALCVSS 9.8/10EPSS 3.31%
Last modified
CVE-2021-44738 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Buffer overflow vulnerability has been identified in Lexmark devices through 2021-12-07 in postscript interpreter.. EPSS estimates a 3.31% chance of exploitation in the next 30 days.
Description
Buffer overflow vulnerability has been identified in Lexmark devices through 2021-12-07 in postscript interpreter.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Lexmark | B2236 Firmware | < mslsg.076.294 |
| Lexmark | Mb2236 Firmware | < mxlsg.076.294 |
| Lexmark | Ms431 Firmware | < mslbd.076.294 |
| Lexmark | Ms331 Firmware | < mslbd.076.294 |
| Lexmark | M1342 Firmware | < mslbd.076.294 |
| Lexmark | B3442 Firmware | < mslbd.076.294 |
| Lexmark | B3340 Firmware | < mslbd.076.294 |
| Lexmark | Xm1342 Firmware | < mslbd.076.294 |
| Lexmark | Mx331 Firmware | < mxlbd.076.294 |
| Lexmark | Mx431 Firmware | < mxlbd.076.294 |
| Lexmark | Mb3442 Firmware | < mxlbd.076.294 |
| Lexmark | Ms321 Firmware | < msngm.076.294 |
| Lexmark | Ms421 Firmware | < msngm.076.294 |
| Lexmark | Ms521 Firmware | < msngm.076.294 |
| Lexmark | Ms621 Firmware | < msngm.076.294 |
| Lexmark | M1242 Firmware | < msngm.076.294 |
| Lexmark | M1246 Firmware | < msngm.076.294 |
| Lexmark | B2338 Firmware | < msngm.076.294 |
| Lexmark | B2442 Firmware | < msngm.076.294 |
| Lexmark | B2546 Firmware | < msngm.076.294 |
| Lexmark | B2650 Firmware | < msngm.076.294 |
| Lexmark | Ms622 Firmware | < mstgm.076.294 |
| Lexmark | M3250 Firmware | < mstgm.076.294 |
| Lexmark | Mx321 Firmware | < mxngm.076.294 |
| Lexmark | Mb2338 Firmware | < mxngm.076.294 |
| Lexmark | Mx421 Firmware | < mxtgm.076.294 |
| Lexmark | Mx521 Firmware | < mxtgm.076.294 |
| Lexmark | Mx522 Firmware | < mxtgm.076.294 |
| Lexmark | Mx622 Firmware | < mxtgm.076.294 |
| Lexmark | Xm1242 Firmware | < mxtgm.076.294 |
| Lexmark | Xm1246 Firmware | < mxtgm.076.294 |
| Lexmark | Xm3250 Firmware | < mxtgm.076.294 |
| Lexmark | Mb2442 Firmware | < mxtgm.076.294 |
| Lexmark | Mb2546 Firmware | < mxtgm.076.294 |
| Lexmark | Mb2650 Firmware | < mxtgm.076.294 |
| Lexmark | Ms821 Firmware | < msngw.076.294 |
| Lexmark | Ms823 Firmware | < msngw.076.294 |
| Lexmark | Ms825 Firmware | < msngw.076.294 |
| Lexmark | B2865 Firmware | < msngw.076.294 |
| Lexmark | Ms725 Firmware | < msngw.076.294 |
| Lexmark | Ms822 Firmware | < mstgw.076.294 |
| Lexmark | Ms826 Firmware | < mstgw.076.294 |
| Lexmark | M5255 Firmware | < mstgw.076.294 |
| Lexmark | M5270 Firmware | < mstgw.076.294 |
| Lexmark | Mx722 Firmware | < mxtgw.076.294 |
| Lexmark | Mx822 Firmware | < mxtgw.076.294 |
| Lexmark | Mx826 Firmware | < mxtgw.076.294 |
| Lexmark | Xm5365 Firmware | < mxtgw.076.294 |
| Lexmark | Xm7355 Firmware | < mxtgw.076.294 |
| Lexmark | Xm7370 Firmware | < mxtgw.076.294 |
Showing 50 of 235 affected configurations. See NVD for the full list.
References
- https://support.lexmark.com/alerts/Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-22-327/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-328/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-382/Third Party Advisory, VDB Entry
- https://support.lexmark.com/alerts/Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-22-327/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-328/Third Party Advisory, VDB Entry
- https://www.zerodayinitiative.com/advisories/ZDI-22-382/Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-44738?
Buffer overflow vulnerability has been identified in Lexmark devices through 2021-12-07 in postscript interpreter.
How severe is CVE-2021-44738?
CVE-2021-44738 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.31% probability of exploitation in the next 30 days.
How do I fix CVE-2021-44738?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-44738?
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Scan your code nowSource: NVD / NIST