Haxx vulnerabilitiesNone on the known-exploited list.

Vendor
The short answer

Haxx has 150 published vulnerabilities across 2 products in our catalogue. None of them is on the list of flaws known to be exploited today. The most affected product is Curl, with 111. If you run Haxx software, patch the exploited flaws first.

See the exploited flaws

We keep watching the known-exploited list.

Products

Which Haxx products have the most vulnerabilities?

Curl leads with 111 published vulnerabilities. Open a product to see its versions and which of its flaws criminals are already using.

  1. Curl111
  2. Libcurl61
Published vulnerabilities
Known exploited

Which Haxx vulnerabilities are being exploited?

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

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

Exploit likelihood

Which Haxx 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. 79%

    This flaw makes curl overflow a heap based buffer in the SOCKS5 proxy handshake.

    CVSS9.8Published18 Oct 2023
  2. 73%

    The SSL protocol, as used in certain configurations in Microsoft Windows and Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, Opera, and other products, encrypts data by using CBC mode with chained...

    CVSS4.3Published6 Sep 2011
  3. 64%

    curl 7.75.0 through 7.76.1 suffers from a use-after-free vulnerability resulting in already freed memory being used when a TLS 1.3 session ticket arrives over a connection.

    CVSS8.1Published11 Jun 2021
  4. 58%

    When curl retrieves an HTTP response, it stores the incoming headers so that they can be accessed later via the libcurl headers API.

    CVSS7.5Published15 Sep 2023
  5. 50%

    A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1.

    CVSS7.8Published28 May 2019
  6. 36%

    curl < 7.84.0 supports "chained" HTTP compression algorithms, meaning that a serverresponse can be compressed multiple times and potentially with different algorithms.

    CVSS6.5Published7 Jul 2022
  7. 31%

    A malicious server can serve excessive amounts of `Set-Cookie:` headers in a HTTP response to curl and curl < 7.84.0 stores all of them.

    CVSS4.3Published7 Jul 2022
  8. 30%

    The sanitize_cookie_path function in cURL and libcurl 7.31.0 through 7.41.0 does not properly calculate an index, which allows remote attackers to cause a denial of service (out-of-bounds write and crash) or possibly...

    CVSS7.5Published24 Apr 2015
  9. 22%

    Stack-based buffer overflow in the Curl_sasl_create_digest_md5_message function in lib/curl_sasl.c in curl and libcurl 7.26.0 through 7.28.1, when negotiating SASL DIGEST-MD5 authentication, allows remote attackers...

    CVSS7.5Published8 Mar 2013
Every product

All Haxx products we track.

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

Precursor Intelligence

Running Haxx? 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 150 published vulnerabilities across 2 products and 415 versions from Haxx.

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

Curl, with 111 published vulnerabilities. Its own page lists the ones known to be exploited.

Create a Precursor Intelligence account and track the Haxx 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.