CVE-2007-4903: n/a vulnerability

CVE-2007-4903: Multiple buffer overflows in a certain ActiveX control in CryptoX.dll 2.0 and earlier in the Ultra Crypto C...

Multiple buffer overflows in a certain ActiveX control in CryptoX.dll 2.0 and earlier in the Ultra Crypto Component allow remote attackers to execute arbitrary code via (1) a long string in the first argument to the AcquireContext method or (2) an unspecified vector to the DeleteContext method.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 15:08 UTC (UTC+00:00)

Security readout for executives and security teams

This is a legacy ActiveX component flaw in CryptoX.dll 2.0 and earlier, part of Ultra Crypto Component. A malicious web page or remote content could trigger buffer overflows and potentially run code on a user’s machine. The source bundle does not provide CVSS, vendor, or patch details. Exposure is most likely limited to legacy Windows environments where Ultra Crypto Component or CryptoX.dll 2.0 or earlier remains installed and ActiveX can execute. The affected vendor/product fields in the bundle are incomplete, so inventory confirmation is essential. Prioritize investigation if the organization still supports legacy Windows or Internet Explorer-era applications. If the component is absent, business risk is low. If present with ActiveX enabled, remediation should be treated as urgent because the stated impact is remote code execution. Mitigation focus: Inventory endpoints for Ultra Crypto Component and CryptoX.dll 2.0 or earlier.; Check vendor or archived advisory guidance for patched versions or removal instructions.; Remove or disable the component where there is no current business requirement..

Prepared: Jun 29, 2026, 03:38 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2007-4903 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Sep 17, 2007, 16:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
ultracrypto-cryptox-bo(36524)CVE reference · vdb-entry, x_refsource_XF
4389CVE reference · exploit, x_refsource_EXPLOIT-DB

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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