7.5

CVE-2017-2659: dropbear_ssh_project dropbear_ssh

Modified
AliasesUBUNTU-CVE-2017-2659DEBIAN-CVE-2017-2659
Published 20-03-2019Last modified 05-08-2024

Vulnerability summary

CVE-2017-2659 is a high (CVSS 7.5) vulnerability in dropbear_ssh_project dropbear_ssh. EPSS estimates a 1.50% chance of exploitation in the next 30 days, higher than 74.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
1.50%
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

Timeline

  1. 20-03-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

It was found that dropbear before version 2013.59 with GSSAPI leaks whether given username is valid or invalid. When an invalid username is given, the GSSAPI authentication failure was incorrectly counted towards the maximum allowed number of password attempts.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

1.50%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.50% 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.

[unknown]1 product
Debian1 product
  • dropbear< 2013.60-1
Dropbear_ssh_project1 product
Ubuntu1 product
  • dropbear< 2017.75-3build1

4 vendors · 4 products

References

5 links