Libxml2 vulnerabilitiesRanked by how likely they are to be used.

Product182 versions
The short answer

Libxml2 is made by Xmlsoft. We track 99 published vulnerabilities in it, across 182 versions. None of them is on the list of flaws known to be exploited today. If you run Libxml2, keep it on a version the vendor still supports.

See the riskiest flaws

We keep watching the known-exploited list.

Known exploited

Which Libxml2 vulnerabilities are being exploited?

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

None of Libxml2's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.

Exploit likelihood

Which Libxml2 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. 41%

    An issue was discovered in libxml2 before 2.10.3.

    CVSS7.5Published23 Nov 2022
  2. 24%

    Buffer overflow in the (1) nanohttp or (2) nanoftp modules in XMLSoft Libxml 2 (Libxml2) 2.6.0 through 2.6.5 allow remote attackers to execute arbitrary code via a long URL.

    CVSS7.5Published15 Mar 2004
  3. 23%

    Heap-based buffer overflow in the xmlParseAttValueComplex function in parser.c in libxml2 before 2.7.0 allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via a long XML...

    CVSS10.0Published12 Sep 2008
  4. 23%

    Buffer overflow in libxml2 allows remote attackers to execute arbitrary code by leveraging an incorrect limit for port values when handling redirects.

    CVSS9.8Published19 Feb 2018
  5. 22%

    There's a flaw in libxml2 in versions before 2.9.11.

    CVSS8.8Published18 May 2021
  6. 22%

    Multiple buffer overflows in libXML 2.6.12 and 2.6.13 (libxml2), and possibly other versions, may allow remote attackers to execute arbitrary code via (1) a long FTP URL that is not properly handled by the...

    CVSS10.0Published1 Mar 2005
  7. 17%

    There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11.

    CVSS8.6Published19 May 2021
  8. 14%

    The xmlParseElementDecl function in parser.c in libxml2 before 2.9.4 allows context-dependent attackers to cause a denial of service (heap-based buffer underread and application crash) via a crafted file, involving...

    CVSS7.5Published9 Jun 2016
  9. 13%

    Integer overflow in xpath.c in libxml2 2.6.x through 2.6.32 and 2.7.x through 2.7.8, and libxml 1.8.16 and earlier, allows context-dependent attackers to cause a denial of service (crash) and possibly execute...

    CVSS9.3Published2 Sep 2011
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We track 99 published vulnerabilities listed under the name Libxml2, across 182 versions.

None of Libxml2's vulnerabilities is on the list of flaws known to be exploited today.

Create a Precursor Intelligence account and track Libxml2. 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.