High CVSS 8.4

CVE-2026-21042

Out-of-bounds write in libsavsac.so prior to SMR Jul-2026 Release 1 allows local attackers to execute arbitrary code.

What this means

Exposure: Exploitable with local access to the machine, with an ordinary user account and with no action from the victim.
Impact: An attacker can read sensitive data, modify or destroy data and degrade the service.
Likelihood: Its EPSS score stays low: nothing points to imminent exploitation, which is no reason to leave it unpatched.

What to doFold into the next patch cycle.

Read automatically from the CVSS vector, the weakness type (CWE) and the EPSS score. The technical description above remains the one published by NIST.

Published: 10 July 2026
CVSS: 8.4 (v4.0) CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.12% probability of exploitation within 30 days · above 2% of all CVEs
Sources: nvd

References

https://nvd.nist.gov/vuln/detail/CVE-2026-21042