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Servers and applications

CVE-2017-9050

libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString 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 CVE-2016-1839.

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)Heap-based buffer overflow (CWE-122)
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-2017-9050
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-9050