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CVE-2010-1885
The MPC::HexToNum function in helpctr.exe in Microsoft Windows Help and Support Center in Windows XP and Windows Server 2003 does not…
High9.3EPSS 71.1%
- Published
- Updated
- Reserved
- Assigned by
- microsoft
Description
The MPC::HexToNum function in helpctr.exe in Microsoft Windows Help and Support Center in Windows XP and Windows Server 2003 does not properly handle malformed escape sequences, which allows remote attackers to bypass the trusted documents whitelist (fromHCP option) and execute arbitrary commands via a crafted hcp:// URL, aka "Help Center URL Validation Vulnerability."
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 71.1% · top 0.6% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 9.3.
Weakness
Affected products
n/a
- affected n/a
References (16)
- VU#578319 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 20100609 Microsoft Windows Help Centre Handles Malformed Escape Sequences Incorrectly (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- ms-win-helpctr-command-execution(59267) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 20100610 Re: Microsoft Windows Help Centre Handles Malformed Escape Sequences Incorrectly (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://blogs.technet.com/b/srd/archive/2010/06/10/help-and-support-center-vulnerability-full-disclosure-posting.aspx (opens in a new tab)x_refsource_CONFIRMx_transferred
- 40725 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 20100609 Microsoft Windows Help Centre Handles Malformed Escape Sequences Incorrectly (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 1024084 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 13808 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- http://blogs.technet.com/b/msrc/archive/2010/06/10/windows-help-vulnerability-disclosure.aspx (opens in a new tab)x_refsource_MISCx_transferred
- http://www.microsoft.com/technet/security/advisory/2219475.mspx (opens in a new tab)x_refsource_CONFIRMx_transferred
- TA10-194A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- oval:org.mitre.oval:def:11733 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- ADV-2010-1417 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- MS10-042 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- 40076 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2010-1885)Record last updated .