Medium 4.9Published Sep 29, 2010

CVE-2010-2530Multiple integer signedness errors in smb_subr.c in the netsmb module in the kernel in NetBSD 5.0.2 and earlier, FreeBSD, and Apple Mac OS X allow local users to cause a denial of service (panic) via…

Updated under an hour ago (Nov 2, 2026, 12:20 AM ET)

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It affects netbsd and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Multiple integer signedness errors in smb_subr.c in the netsmb module in the kernel in NetBSD 5.0.2 and earlier, FreeBSD, and Apple Mac OS X allow local users to cause a denial of service (panic) via a negative size value in a /dev/nsmb ioctl operation, as demonstrated by a (1) SMBIOC_LOOKUP or (2) SMBIOC_OPENSESSION ioctl call.

CVSS: 4.9 MEDIUM (v2.0, NVD)AV:L/AC:L/Au:N/C:N/I:N/A:C
Weakness (CWE): CWE-189
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

netbsd netbsd netbsd:netbsd	through 5.0.2; 0.8; 0.9; 1.0; 1.1; 1.2; 1.2.1; 1.3; and 32 more ranges	NVD
apple mac_os_x apple:mac_os_x	all versions	NVD
freebsd freebsd freebsd:freebsd	all versions	NVD

References

References

http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/netsmb/smb_subr.c.diff?r1=1.34&r2=1.35&only_with_tag=MAIN&f=h
http://www.openwall.com/lists/oss-security/2010/07/12/6
http://www.openwall.com/lists/oss-security/2010/07/16/2
http://www.securityfocus.com/bid/41557

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.