All vulnerabilities

Servers and applications

CVE-2017-9049

libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictComputeFastKey function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for libxml2 Bug 759398.

Severity
High 7.5
Published
18 May 2017
Last changed
14 Oct 2026
Added to UpHeron
1 Nov 2026
Exploit chance
4.6% in the next 30 daysHigher than 91% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Out-of-bounds read (CWE-125)
Attack
Over the network · No login needed · No user action needed
Attacker can
Take it down
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Sources
NVD

Affected software

SoftwareAffected versions
libxml2Servers and applications · cpe:a:xmlsoft:libxml2
  • Version 2.9.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-9049
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-9049