CVE-2018-1000891: Bitcoin SV before 0.1.1 allows uncontrolled resource consumption when receiving messages with invalid checksum

Q: How do I fix CVE-2018-1000891?

bitcoin sv: upgrade to 0.1.1. Exact commands for each OS are on this page.

Q: Is CVE-2018-1000891 being exploited?

CVE-2018-1000891 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-1000891 affect?

CVE-2018-1000891 affects bitcoin sv. Severity is high (CVSS 7.5). Bitcoin SV before 0.1.1 allows uncontrolled resource consumption when receiving messages with invalid checksums.

Q: How urgent is CVE-2018-1000891?

Priority 47/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2018-1000891 is a high-severity flaw (CVSS 7.5) affecting bitcoin sv. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Bitcoin SV before 0.1.1 allows uncontrolled resource consumption when receiving messages with invalid checksums.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-400
Published	2020-12-23
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: bitcoinsv

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-12-23 17:15 UTCPublished CVE record published
2026-06-17 01:33 UTCUpdated Record last modified

bitcoinsv bitcoin sv UPGRADE

Affected: < 0.1.1

Fixed in: 0.1.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy bitcoin-sv || rpm -q bitcoin-sv || bitcoin-sv --version

2. UPGRADE to 0.1.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bitcoin-sv

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bitcoin-sv

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-1000891?

bitcoin sv: upgrade to 0.1.1. Exact commands for each OS are on this page.

Is CVE-2018-1000891 being exploited?

CVE-2018-1000891 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-1000891 affect?

CVE-2018-1000891 affects bitcoin sv. Severity is high (CVSS 7.5). Bitcoin SV before 0.1.1 allows uncontrolled resource consumption when receiving messages with invalid checksums.

How urgent is CVE-2018-1000891?

Priority 47/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2018-1000893 HIGH 7.5 UPGRADE Bitcoin SV before 0.1.1 allows uncontrolled resource consumption when deserializing transactions.
CVE-2018-1000892 HIGH 7.5 UPGRADE Bitcoin SV before 0.1.1 allows uncontrolled resource consumption when receiving sendheaders messages.

References

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