Xfree86 Project vulnerabilitiesNone on the known-exploited list.

Vendor
The short answer

Xfree86 Project has 39 published vulnerabilities across 8 products in our catalogue. None of them is on the list of flaws known to be exploited today. The most affected product is X11r6, with 27. If you run Xfree86 Project software, patch the exploited flaws first.

See the exploited flaws

We keep watching the known-exploited list.

Products

Which Xfree86 Project products have the most vulnerabilities?

X11r6 leads with 27 published vulnerabilities. Open a product to see its versions and which of its flaws criminals are already using.

Known exploited

Which Xfree86 Project vulnerabilities are being exploited?

This is the list that matters most: flaws criminals are using now.

None of Xfree86 Project's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.

Exploit likelihood

Which Xfree86 Project flaws are most likely to be used?

Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.

50% or more10% to 49%Under 10%
  1. 25%

    Buffer overflow in the ReadFontAlias function in XFree86 4.1.0 to 4.3.0, when using the CopyISOLatin1Lowered function, allows local or remote authenticated users to execute arbitrary code via a malformed entry in the...

    CVSS10.0Published3 Mar 2004
  2. 24%

    Buffer overflow in Dispatch() routine for XFS font server (fs.auto) on Solaris 2.5.1 through 9 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a certain XFS query.

    CVSS7.5Published11 Dec 2002
  3. 21%

    Buffer overflow in ReadFontAlias from dirfile.c of XFree86 4.1.0 through 4.3.0 allows local users and remote attackers to execute arbitrary code via a font alias file (font.alias) with a long token, a different...

    CVSS10.0Published3 Mar 2004
  4. 5.8%

    Multiple integer overflows in the font libraries for XFree86 4.3.0 allow local or remote attackers to cause a denial of service or execute arbitrary code via heap-based and stack-based buffer overflow attacks.

    CVSS7.5Published20 Oct 2003
  5. 5.6%

    Integer overflow in the bdfReadCharacters function in bdfread.c in (1) X.Org libXfont before 20070403 and (2) freetype 2.3.2 and earlier allows remote authenticated users to execute arbitrary code via crafted BDF...

    CVSS8.5Published6 Apr 2007
  6. 4.5%

    scan.c for LibXPM may allow attackers to execute arbitrary code via a negative bitmap_unit value that leads to a buffer overflow.

    CVSS7.5Published2 Mar 2005
  7. 4.3%

    Guessable magic cookies in X Windows allows remote attackers to execute commands, e.g.

    CVSS10.0Published1 Nov 1995
Every product

All Xfree86 Project products we track.

6 products, most vulnerabilities first. Find the ones you run, then open a product to see its versions and exploited flaws.

This directory lists the 6 Xfree86 Project products with at least one tracked version, of 8 in our catalogue.

Precursor Intelligence

Running Xfree86 Project? We'll keep checking.

Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.

  1. Tell us what you runPick your software from a list, or let us work it out from your website.
  2. We match it to every flawOver 400,000 published flaws, checked against your list.
  3. Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
  4. Told as soon as we knowAn alert by email, in the app or by webhook to your own tools.

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FAQ

Common questions, answered plainly.

Something else? Talk to the team →

Our catalogue lists 39 published vulnerabilities across 8 products and 30 versions from Xfree86 Project.

None of Xfree86 Project's vulnerabilities is on the list of flaws known to be exploited today.

X11r6, with 27 published vulnerabilities. Its own page lists the ones known to be exploited.

Create a Precursor Intelligence account and track the Xfree86 Project products you run. We match them against every published flaw, give each one a risk score from 0 to 100 and tell you as soon as we spot one that affects you, by email, in the app or by webhook.