CVE-2016-9586

Advisory lineage Upstream: 0 Downstream: 13
Modified
Published: 23 Apr 2018, 18:00
Last modified:15 Apr 2026, 21:03

Vulnerability Summary

Overall Risk (default)
medium
33/100
CVSS Score
8.1 HIGH
v3.0 (nvd)
EPSS Score
1.01% LOW
1% probability +0.40%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

23 Apr 2018, 18:00
Published
Vulnerability first disclosed
15 Apr 2026, 21:03
Last Modified
Vulnerability information updated

Description

curl before version 7.52.0 is vulnerable to a buffer overflow when doing a large floating point output in libcurl's implementation of the printf() functions. If there are any application that accepts a format string from the outside without necessary input filtering, it could allow remote attacks.

CVSS Metrics

  • v3.0•MEDIUM•Score: 5.9CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  • v3.0•HIGH•Score: 8.1CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 1.01%• Percentile: 77%

Techniques & Countermeasures

  • CWE-119•Improper Restriction of Operations within the Bounds of a Memory Buffer

    The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

  • CWE-122•Heap-based Buffer Overflow

    A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

Affected Systems

  • haxx•curl

    < 7.52.0

  • redhat•curl

    curl 7.52.0

References (11)