5.3

CVE-2019-12953: dropbear_ssh_project dropbear_ssh Observable Discrepancy

Modified
AliasesUBUNTU-CVE-2019-12953DEBIAN-CVE-2019-12953
Published 30-12-2020Last modified 04-08-2024

Vulnerability summary

CVE-2019-12953 is a medium (CVSS 5.3) Observable Discrepancy vulnerability in dropbear_ssh_project dropbear_ssh. EPSS estimates a 1.24% chance of exploitation in the next 30 days, higher than 69.2% 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
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
1.24%
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. 30-12-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Dropbear 2011.54 through 2018.76 has an inconsistent failure delay that may lead to revealing valid usernames, a different issue than CVE-2018-15599.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.24%

Chance of exploitation in the next 30 days

Percentile

69%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.24% 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< 2019.78-1
Dropbear_ssh_project1 product
Ubuntu1 product
  • dropbearAll versions (No fix recorded)

3 vendors · 3 products

References

5 links