UpHeron
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Servers and applications

CVE-2016-4483

The xmlBufAttrSerializeTxtContent function in xmlsave.c in libxml2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a non-UTF-8 attribute value, related to serialization. NOTE: this vulnerability may be a duplicate of CVE-2016-3627.

Severity
High 7.5
Published
11 Apr 2017
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.9.4
Exploit chance
6% in the next 30 daysHigher than 93% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Deserialization of untrusted data (CWE-502)
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
  • Every version before 2.9.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-4483
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-4483