What’s Vulnerable › Vulnerabilities

CVE-2021-33945

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-02-15 · updated 2026-06-17
• Weakness: CWE-787

Description

RICOH Printer series SP products 320DN, SP 325DNw, SP 320SN, SP 320SFN, SP 325SNw, SP 325SFNw, SP 330SN, Aficio SP 3500SF, SP 221S, SP 220SNw, SP 221SNw, SP 221SF, SP 220SFNw, SP 221SFNw v1.06 were discovered to contain a stack buffer overflow in the file /etc/wpa_supplicant.conf. This vulnerability allows attackers to cause a Denial of Service (DoS) via crafted overflow data.

Affected products

• RICOH Aficio Sp 3500Sf Firmware: 1.06
• RICOH M 2700 Firmware: all versions
• RICOH M 2701 Firmware: all versions
• RICOH M 320 Firmware: all versions
• RICOH M 320F Firmware: all versions
• RICOH M 320Fb Firmware: all versions
• RICOH M C2000 Firmware: all versions
• RICOH M C250Fw Firmware: all versions
• RICOH M C250Fwb Firmware: all versions
• RICOH P 310 Firmware: all versions
• RICOH P 311 Firmware: all versions
• RICOH P C300W Firmware: all versions
• RICOH P C301W Firmware: all versions
• RICOH Sp 212Nw Firmware: all versions
• RICOH Sp 212Sfnw Firmware: all versions
• RICOH Sp 212Sfw Firmware: all versions
• RICOH Sp 212Snw Firmware: all versions
• RICOH Sp 212Suw Firmware: all versions
• RICOH Sp 212W Firmware: all versions
• RICOH Sp 213Nw Firmware: all versions
• RICOH Sp 213Sfnw Firmware: all versions
• RICOH Sp 213Sfw Firmware: all versions
• RICOH Sp 213Snw Firmware: all versions
• RICOH Sp 213Suw Firmware: all versions
• RICOH Sp 213W Firmware: all versions
• RICOH Sp 220Nw Firmware: all versions
• RICOH Sp 220Sfnw Firmware: 1.06
• RICOH Sp 220Snw Firmware: 1.06
• RICOH Sp 221Nw Firmware: all versions
• RICOH Sp 221S Firmware: 1.06

References

• https://github.com/Ainevsia/CVE-Request/tree/main/Ricoh/1
• https://www.ricoh.com/info/2022/0228_1/
• https://github.com/Ainevsia/CVE-Request/tree/main/Ricoh/1
• https://www.ricoh.com/info/2022/0228_1/

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