Unix vulnerabilitiesRanked by how likely they are to be used.

Product8 versions
The short answer

Unix is made by Sco. We track 10 published vulnerabilities in it, across 8 versions. None of them is on the list of flaws known to be exploited today. If you run Unix, keep it on a version the vendor still supports.

See the riskiest flaws

We keep watching the known-exploited list.

Known exploited

Which Unix vulnerabilities are being exploited?

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

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

Exploit likelihood

Which Unix 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. 5.5%

    Denial of Service vulnerabilities in BIND 4.9 and BIND 8 Releases via CNAME record and zone transfer.

    CVSS5.4Published8 Apr 1998
  2. 5.0%

    DNS cache poisoning via BIND, by predictable query IDs.

    CVSS5.0Published13 Aug 1997
  3. 2.4%

    Denial of Service vulnerability in BIND 8 Releases via maliciously formatted DNS messages.

    CVSS5.0Published8 Apr 1998
  4. 1.6%

    SCO UNIX System V/386 Release 3.2, and other SCO products, installs the home directories (1) /tmp for the dos user, and (2) /usr/tmp for the asg user, which allows other users to gain access to those accounts since...

    CVSS10.0Published17 Sep 1993
  5. 1.2%

    Vulnerability in passwd in SCO UNIX 4.0 and earlier allows attackers to cause a denial of service by preventing users from being able to log into the system.

    CVSS6.4Published24 May 1993
  6. 1.1%

    Buffer overflow in mscreen on SCO OpenServer 5.0 and SCO UNIX 3.2v4 allows a local user to gain root access via (1) a long TERM environmental variable and (2) a long entry in the .mscreenrc file.

    CVSS7.2Published27 Aug 1998
  7. 0.4%

    Vulnerability in prwarn in SCO UNIX 4.2 and earlier allows local users to gain root access.

    CVSS7.2Published30 Nov 1994
  8. 0.4%

    Vulnerability in login in SCO UNIX 4.2 and earlier allows local users to gain root access.

    CVSS7.2Published30 Nov 1994
  9. 0.3%

    Unspecified vulnerability in pt_chmod in SCO UNIX 4.2 and earlier allows local users to gain root access.

    CVSS7.2Published30 Nov 1994
  10. 0.3%

    Vulnerability in "at" program in SCO UNIX 4.2 and earlier allows local users to gain root access.

    CVSS7.2Published30 Nov 1994
Precursor Intelligence

Running Unix? 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 →

We track 10 published vulnerabilities listed under the name Unix, across 8 versions.

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

Create a Precursor Intelligence account and track Unix. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.