SB2026052249 - Debian update for nss
Published: May 22, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2026-6766)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to incorrect boundary conditions in the Libraries component in NSS when parsing crafted input. A remote attacker can cause the browser to process specially crafted content to cause a denial of service.
User interaction is required to visit a specially crafted website or URL.
2) Input validation error (CVE-ID: CVE-2026-6767)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to an unspecified flaw in the Libraries component in NSS when processing crafted input. A remote attacker can cause the browser to process specially crafted content to cause a denial of service.
User interaction is required to visit a crafted website or URL.
3) Out-of-bounds read (CVE-ID: CVE-2026-6772)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to incorrect boundary conditions in the Libraries component in NSS when processing crafted input. A remote attacker can cause the browser to process specially crafted content to cause a denial of service.
User interaction is required to visit a crafted website or URL.
Remediation
Install update from vendor's website.