SARA / Free Tools / CVE / CVE-2022-3165

CVE-2022-3165 — An integer underflow issue was found in the QEMU VNC server while processing Cli

An integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the extended format. A malicious client could use this flaw to make QEMU unresponsive by sending a specially crafted payload message, resulting in a denial of service.

CVSS
— —
EPSS
0.15% (top 64.50%)
CWE
CWE-191
Published
2022-10-17T00:00:00.000Z
Last modified
2025-05-14T20:12:28.401Z
CVSS vector
—

01What is this vulnerability?

An integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the extended format. A malicious client could use this flaw to make QEMU unresponsive by sending a specially crafted payload message, resulting in a denial of service.

02Affected products

VendorProductVersions
na / QEMUAffected 6.1.0 and later. Will be fixed in 7.2.0-rc0.

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

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

09References

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