10

CVE-2016-7407: dropbear_ssh_project dropbear_ssh Improper Input Validation

Modified
AliasesUBUNTU-CVE-2016-7407DEBIAN-CVE-2016-7407
Published 03-03-2017Last modified 06-08-2024

Vulnerability summary

CVE-2016-7407 is a high (CVSS 10.0) Improper Input Validation vulnerability in dropbear_ssh_project dropbear_ssh. EPSS estimates a 5.80% chance of exploitation in the next 30 days, higher than 93.1% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.8 (NVD); no exploitation reported by the 5 checked sources; EPSS 6% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
10.0/10
010
High · v2.0 (NVD)
EPSS score
5.80%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2
DLA-634-1MGASA-2016-0301

Timeline

  1. 03-03-2017
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The dropbearconvert command in Dropbear SSH before 2016.74 allows attackers to execute arbitrary code via a crafted OpenSSH key file.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

5.80%

Chance of exploitation in the next 30 days

Percentile

93%

Versus all other CVEs

30-day change

No change 0.00 pp

From 5.80% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Debian1 product
  • dropbear< 2016.74-1
Dropbear_ssh_project1 product
Ubuntu1 product
  • dropbearAll versions (No fix recorded)

3 vendors · 3 products

References

9 links