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HuttenlocherTechnologies
HighCVSS 7.51.8% exploit oddsOther software

CVE-2005-4126

** UNVERIFIABLE, PRERELEASE ** NOTE: this issue describes a problem that can not be independently verified as of 20051208.

** UNVERIFIABLE, PRERELEASE ** NOTE: this issue describes a problem that can not be independently verified as of 20051208. Unspecified vulnerability in unspecified versions of Real Networks RealPlayer allows attackers to execute arbitrary code. NOTE: the information regarding this issue is extremely vague and does not provide any verifiable information. It has been posted by a reliable reporter with a prerelease disclosure policy. This item has only been assigned a CVE identifier for tracking purposes, and to serve as a concrete example for discussion of the newly emerging UNVERIFIABLE and PRERELEASE content decisions in CVE, which must be discussed by the Editorial Board. Without additional details or independent verification by reliable sources, it is possible that this item might be RECAST or REJECTED.

Description from the National Vulnerability Database, published by MITRE

What to do: Apply the vendor’s update. The NVD record links to the advisory.

What it means for a small business

If your business uses Realplayer, install the vendor's update. If you're not sure whether you use it, ask whoever manages your computers.

How likely is an attack? The Exploit Prediction Scoring System, run by FIRST (the global association of security response teams), puts the odds of this one being exploited in the next 30 days at 1.8%, higher than 78% of CVEs. That’s above average: worth scheduling this week. Scored October 29, 2026, updated daily.

Check your own setup

  • Website check: reads what your site runs from the outside (WordPress version, plugins it can see, old server software) and matches it against this database.
  • Server check: what your web server says about itself, and whether that version has known flaws.

Part of the Huttenlocher Technologies vulnerability database, refreshed twice a day from CISA and the NVD. The title, category and plain-language guidance are ours; check the linked record before acting on a detail. This is general guidance, not a review of your systems.

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