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Vulnerabilities

Vulnerability · CVE-2016-5360

HAproxy 1.6.x before 1.6.6, when a deny comes from a reqdeny rule, allows remote attackers to cause a denial of service (uninitialized memory access and crash) or poss…

Published Jun 30, 2016 · catalog updated Jun 17, 2026 · ubuntu linux

Last checked Nov 5, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2016-5360 is not in CISA KEV. FIRST estimates a 42.82% chance of exploitation in the next 30 days. Check whether you run ubuntu linux.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
42.82%
Remediation
Advisory link
Affected products
cpe canonical/ubuntu linux · cpe haproxy/haproxy

HAproxy 1.6.x before 1.6.6, when a deny comes from a reqdeny rule, allows remote attackers to cause a denial of service (uninitialized memory access and crash) or possibly have unspecified other impact via unknown vectors.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe canonical/ubuntu linux16.04
  • cpe haproxy/haproxy1.6.0
  • cpe haproxy/haproxy1.6.1
  • cpe haproxy/haproxy1.6.2
  • cpe haproxy/haproxy1.6.3
  • cpe haproxy/haproxy1.6.4

How to fix CVE-2016-5360

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2016-5360 is not in CISA KEV. FIRST estimates a 42.82% chance of exploitation in the next 30 days. Check whether you run ubuntu linux.

Which versions are affected?

Compare what you have installed with canonical/ubuntu linux 16.04. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-119: Buffer Overflow. EPSS 42.82%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Ubuntu security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 30, 2016 · Monitored products — high

    Detected

    HAproxy 1.6.x before 1.6.6, when a deny comes from a reqdeny rule, allows remote attackers to cause a denial of service (uninitialized memory access and crash) or possibly have unspecified other impact via unknown vectors.

  2. Jun 17, 2026 · Monitored products — high

    Updated

    HAproxy 1.6.x before 1.6.6, when a deny comes from a reqdeny rule, allows remote attackers to cause a denial of service (uninitialized memory access and crash) or possibly have unspecified other impact via unknown vectors.

Sources

  • CVE.orgVulnerability recordCVE-2016-5360

    Official CVE identifier

    cve.org
  • Monitored products — highVendor advisoryCVE-2016-5360

    HAproxy 1.6.x before 1.6.6, when a deny comes from a reqdeny rule, allows remote attackers to cause a denial of service (uninitialized memory access and crash) or possibly have unspecified other impact via unknown vectors.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 4, 2026
  • Monitored products — highNov 2, 2026