SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2009-3103

Array index error in the SMBv2 protocol implementation in srv2.sys in Microsoft Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold and SP2, and Windows 7 RC allows remote attackers to execute arbitrary code or cause a denial of service (system…

HIGH 10.0EPSS 90.2%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 90.2%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

Description

Array index error in the SMBv2 protocol implementation in srv2.sys in Microsoft Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold and SP2, and Windows 7 RC allows remote attackers to execute arbitrary code or cause a denial of service (system crash) via an & (ampersand) character in a Process ID High header field in a NEGOTIATE PROTOCOL REQUEST packet, which triggers an attempted dereference of an out-of-bounds memory location, aka "SMBv2 Negotiation Vulnerability." NOTE: some of these details are obtained from third party information.

CVSS 2.0
10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS
90.23% probability · 100th percentile
CISA KEV
Not listed
Weakness
CWE-399
Affected
microsoft/windows server 2008 · microsoft/windows vista
Source
secure@microsoft.com

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.