THREATPORT/VULNERABILITY/CVE-2016-5826
HIGH SEVERITY

CVE-2016-5826

Libical vulnerability

CVSS
7.5
EPSS
3.0%
EPSS pct
86th
Exploited
No known
The parser_get_next_char function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service (out-of-bounds heap read) by crafting a string to the icalparser_parse_string function.
Affected vendor
Libical Project
Affected product
Libical
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
Published
2017-01-27

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 3.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 86% of all scored CVEs.

Check your external exposure to CVE-2016-5826

  • Confirm whether Libical Project Libical is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2016-5826.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2016-5826

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2016-5826 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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