CVE-2026-80791: nvmet-auth: zero the AUTH_RECEIVE response buffer

highCVSS 7.5CVE-2026-80791

Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: high — CVSS 7.5
Published: 2026-09-08
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80791

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-807910.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 11% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-80791	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for nvmet-auth

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownCVE-2026-80791: In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: zero the AUTH_…nvd · 2026-09-04
criticalCVE-2026-72130: In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: reject short A…nvd · 2026-08-15
criticalCVE-2026-64319: nvmet-auth: validate reply message payload bounds against transfer lengthmsrc · 2026-08-06
criticalCVE-2026-64319: In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: validate reply…nvd · 2026-07-25