CVE-2010-4210

CVE-2010-4210 is a critical vulnerability affecting FreeBSD versions 7.x before 7.3-RELEASE and 8.x before 8.0-RC1, stemming from an improper mutex unlock in the pfs_getextattr function when handling pseudofs. This flaw allows local users to trigger a kernel panic, leading to a denial of service, and potentially overwrite arbitrary memory or execute arbitrary code. With a CVSS score of 7.8 (High), it presents a significant risk due to its low attack complexity and high impact on confidentiality, integrity, and availability. While not listed on CISA's KEV catalog and lacking widespread community discussion or media coverage, an exploit (EDB-15206) for privilege escalation is publicly available, indicating its potential for exploitation.