CVE-2022-3429 — A denial-of-service vulnerability was found in the firmware used in Lenovo print

A denial-of-service vulnerability was found in the firmware used in Lenovo printers, where users send illegal or malformed strings to an open port, triggering a denial of service that causes a display error and prevents the printer from functioning properly.

01What is this vulnerability?

A denial-of-service vulnerability was found in the firmware used in Lenovo printers, where users send illegal or malformed strings to an open port, triggering a denial of service that causes a display error and prevents the printer from functioning properly.

02Affected products

Vendor	Product	Versions
—	Lenovo / Printer GM265DN (production date June 2022 and before) —	—
—	Lenovo / Printer GM265DN (production date July 2022 and later) —	—
—	Lenovo / Printer GM266DNS —	—
—	Lenovo / Printer G263DNS —	—

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-10-27T18:57:50.748Z
• Last modified: 2024-09-09T19:33:08.586Z

09References

• iknow.lenovo.com.cn — https://iknow.lenovo.com.cn/detail/205041.html