FreeBSD vulnerabilitiesNone on the known-exploited list.

Vendor
The short answer

FreeBSD has 553 published vulnerabilities across 14 products in our catalogue. None of them is on the list of flaws known to be exploited today. The most affected product is FreeBSD, with 536. If you run FreeBSD software, patch the exploited flaws first.

See the exploited flaws

We keep watching the known-exploited list.

Products

Which FreeBSD products have the most vulnerabilities?

FreeBSD leads with 536 published vulnerabilities. Open a product to see its versions and which of its flaws criminals are already using.

Known exploited

Which FreeBSD vulnerabilities are being exploited?

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

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

Exploit likelihood

Which FreeBSD 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. >99%

    A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd).

    CVSS8.1Published1 Jul 2024
  2. 95%

    Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.2 and earlier, Heimdal 1.5.1 and earlier, GNU inetutils, and possibly other...

    CVSS10.0Published25 Dec 2011
  3. 94%

    The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension...

    CVSS5.9Published18 Dec 2023
  4. 83%

    Multiple TCP implementations with Protection Against Wrapped Sequence Numbers (PAWS) with the timestamps option enabled allow remote attackers to cause a denial of service (connection loss) via a spoofed packet with...

    CVSS5.0Published31 May 2005
  5. 81%

    AnyDesk before 5.5.3 on Linux and FreeBSD has a format string vulnerability that can be exploited for remote code execution.

    CVSS9.8Published9 Jun 2020
  6. 78%

    Off-by-one error in the fb_realpath() function, as derived from the realpath function in BSD, may allow attackers to execute arbitrary code, as demonstrated in wu-ftpd 2.5.0 through 2.6.2 via commands that cause...

    CVSS9.8Published27 Aug 2003
  7. 73%

    Multiple ethernet Network Interface Card (NIC) device drivers do not pad frames with null bytes, which allows remote attackers to obtain information from previous packets or kernel memory by using malformed packets,...

    CVSS5.0Published17 Jan 2003
  8. 71%

    ICMP messages to broadcast addresses are allowed, allowing for a Smurf attack that can cause a denial of service.

    CVSS5.0Published5 Jan 1998
  9. 70%

    Integer overflow in print-bgp.c in the BGP dissector in tcpdump 3.9.6 and earlier allows remote attackers to execute arbitrary code via crafted TLVs in a BGP packet, related to an unchecked return value.

    CVSS9.8Published16 Jul 2007
  10. 66%

    The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code via buffer overflow attacks, as demonstrated using the parseaddr function in parseaddr.c.

    CVSS10.0Published6 Oct 2003
Precursor Intelligence

Running FreeBSD? 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.

Free plan, no card needed. Nothing to install.

FAQ

Common questions, answered plainly.

Something else? Talk to the team →

Our catalogue lists 553 published vulnerabilities across 14 products and 270 versions from FreeBSD.

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

FreeBSD, with 536 published vulnerabilities. Its own page lists the ones known to be exploited.

Create a Precursor Intelligence account and track the FreeBSD 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.