CVE-2022-29850 — Various Lexmark products through 2022-04-27 allow an attacker who has already co

Various Lexmark products through 2022-04-27 allow an attacker who has already compromised an affected Lexmark device to maintain persistence across reboots.

01What is this vulnerability?

Various Lexmark products through 2022-04-27 allow an attacker who has already compromised an affected Lexmark device to maintain persistence across reboots.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

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: 2022-08-25T23:11:48.000Z
• Last modified: 2024-08-03T06:33:42.933Z

09References

• support.lexmark.com — https://support.lexmark.com/alerts/
• publications.lexmark.com — https://publications.lexmark.com/publications/security-alerts/CVE-2022-29850.pdf
• www.lexmark.com — https://www.lexmark.com/en_us/solutions/security/lexmark-security-advisories.htm…