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Fencer Intel
critical 9.8

CVE-2016-7406 in the critical feed json

Format string vulnerability in Dropbear SSH before 2016.74 allows remote attackers to execute arbitrary code via format string specifiers i…

published 2017-03-03 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-8259

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
10.2%
EPSS 10.2% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

Format string vulnerability in Dropbear SSH before 2016.74 allows remote attackers to execute arbitrary code via format string specifiers in the (1) username or (2) host argument.

Patch / fix

  • dropbear Debian 14, Debian 13, Debian 12 2016.74-1

debian advisories DEBIAN-CVE-2016-7406

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-7406 updated cvss 7.3

dropbear: Multiple issues fixed in dropbear 2016.74

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

10.22% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.