5.3

CVE-2018-20586: bitcoin bitcoin_core Improper Encoding or Escaping of Output

Modified
Published 12-03-2020Last modified 05-08-2024

Vulnerability summary

CVE-2018-20586 is a medium (CVSS 5.3) Improper Encoding or Escaping of Output vulnerability in bitcoin bitcoin_core. EPSS estimates a 1.09% chance of exploitation in the next 30 days, higher than 65.3% of scored vulnerabilities. 1 public exploit is recorded.

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
1.09%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Timeline

  1. 12-03-2020
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

bitcoind and Bitcoin-Qt prior to 0.17.1 allow injection of arbitrary data into the debug log via an RPC call.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.09%

Chance of exploitation in the next 30 days

Percentile

65%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.09% 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

1 found
  • referenceUnverified

    Exploit Reference (en.bitcoin.it)

    Maturity: unknown

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.

Bitcoin1 product
  • bitcoin_coreEOL0.12.0:rc1 | 0.12.0:rc2 | 0.12.0:rc3 | 0.12.0:rc4 | 0.12.0:rc5 | 0.12.1 | 0.12.1:rc1 | 0.12.1:rc2 | 0.13 | 0.13.0 | 0.13.0:rc1 | 0.13.0:rc2 | 0.13.0:rc3 | 0.13.1 | 0.13.1:rc1 | 0.13.1:rc2 | 0.13.1:rc3 | 0.13.2 | 0.13.2:rc1 | 0.14.0 | 0.14.0:rc1 | 0.14.0:rc2 | 0.14.0:rc3 | 0.14.1 | 0.14.1:rc1 | 0.14.1:rc2 | 0.14.2 | 0.14.2:rc1 | 0.14.2:rc2 | 0.14.3 | 0.15.0 | 0.15.0:rc1 | 0.15.0:rc2 | 0.15.0:rc3 | 0.15.0.1 | 0.15.1 | 0.15.1:rc1 | 0.15.2 | 0.16.0 | 0.16.0:rc1 | 0.16.0:rc2 | 0.16.0:rc3 | 0.16.0:rc4 | 0.16.1 | 0.16.1:rc1 | 0.16.1:rc2 | 0.16.2 | 0.16.2:rc1 | 0.16.2:rc2 | 0.16.3 | 0.17.0

1 vendor · 1 product

References

1 links