CVE-2008-4835 [Critical] | Code Injection in Windows 2000

CVE-2008-4835 is rated High Risk (76.7/100): CVSS Critical severity, with high exploitation likelihood (EPSS 66.73%, 98th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +3.04% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-12-28	63.69%	66.73%	+3.04%
2	2025-12-27	66.73%	63.69%	-3.04%
3	2025-10-28	—	66.73%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2025-12-28

63.69%

66.73%

+3.04%

2025-12-27

66.73%

63.69%

-3.04%

2025-10-28

—

66.73%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.8	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	3.9	5.9	134c704f-9b21-4f2e-91b3-4a467353bcc0
10.0	2.0	HIGH	`AV:N/AC:L/Au:N/C:C/I:C/A:C` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:C) Complete confidentiality impact. Integrity impact (I:C) Complete integrity impact. Availability impact (A:C) Complete availability impact.	10.0	10.0	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

9.8

3.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

3.9

5.9

134c704f-9b21-4f2e-91b3-4a467353bcc0

10.0

2.0

HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:C): Complete confidentiality impact.
Integrity impact (I:C): Complete integrity impact.
Availability impact (A:C): Complete availability impact.

10.0

[email protected]

Affected software / configurations for CVE-2008-4835

Vendor	Product	Version	Raw CPE
microsoft	windows_2000	—	cpe:2.3:o:microsoft:windows_2000::sp4::::::*
microsoft	windows_server_2003	—	cpe:2.3:o:microsoft:windows_server_2003::::::::
microsoft	windows_server_2003	—	cpe:2.3:o:microsoft:windows_server_2003::sp1::::::*
microsoft	windows_server_2003	—	cpe:2.3:o:microsoft:windows_server_2003::sp1:itanium:::::
microsoft	windows_server_2003	—	cpe:2.3:o:microsoft:windows_server_2003::sp2::::::*
microsoft	windows_server_2008	—	cpe:2.3:o:microsoft:windows_server_2008:::itanium:::::*
microsoft	windows_server_2008	—	cpe:2.3:o:microsoft:windows_server_2008:::x32:::::*
microsoft	windows_server_2008	—	cpe:2.3:o:microsoft:windows_server_2008:::x64:::::*
microsoft	windows_vista	—	cpe:2.3:o:microsoft:windows_vista::::::::
microsoft	windows_vista	—	cpe:2.3:o:microsoft:windows_vista:::x64:::::*
microsoft	windows_vista	—	cpe:2.3:o:microsoft:windows_vista::sp1::::::*
microsoft	windows_xp	—	cpe:2.3:o:microsoft:windows_xp:::pro_x64:::::*
microsoft	windows_xp	—	cpe:2.3:o:microsoft:windows_xp::sp2::::::*
microsoft	windows_xp	—	cpe:2.3:o:microsoft:windows_xp::sp2:pro_x64:::::
microsoft	windows_xp	—	cpe:2.3:o:microsoft:windows_xp::sp3::::::*

References for CVE-2008-4835

URL	Tags
http://www.securityfocus.com/archive/1/500013/100/0/threaded
http://www.securityfocus.com/bid/33122
http://www.securitytracker.com/id?1021560
http://www.us-cert.gov/cas/techalerts/TA09-013A.html	US Government Resource
http://www.vupen.com/english/advisories/2009/0116
http://www.zerodayinitiative.com/advisories/ZDI-09-002/
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-001
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5248

URL

CVE-2008-4835

Exploit prediction scoring system (EPSS) score for CVE-2008-4835

Common vulnerability scoring system (CVSS) metrics for CVE-2008-4835

Weakness enumeration for CVE-2008-4835

Affected software / configurations for CVE-2008-4835

References for CVE-2008-4835