CVE-2014-4502: Multiple heap-based buffer overflows in the parse_notify function in sgminer before 4.2.2, cgminer before 4.3.

Q: How do I fix CVE-2014-4502?

bfgminer: upgrade to newer than 4.0.0; sgminer: upgrade to newer than 4.2.1. Exact commands for each OS are on this page.

Q: Is CVE-2014-4502 being exploited?

CVE-2014-4502 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-2014-4502 affect?

CVE-2014-4502 affects bfgminer, sgminer. Severity is high (CVSS 10.0). Multiple heap-based buffer overflows in the parse_notify function in sgminer before 4.2.2, cgminer before 4.3.5, and BFGMiner before 4.1.0 allow remote pool servers to have unspecified impact via a (1) large or (2) negative value in the Ext

Q: How urgent is CVE-2014-4502?

Priority 62/100. Critical severity; Public exploit reference

This week

HIGH 10.0UPGRADEUPGRADE

CVE-2014-4502 is a high-severity flaw (CVSS 10.0) affecting bfgminer, sgminer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple heap-based buffer overflows in the parse_notify function in sgminer before 4.2.2, cgminer before 4.3.5, and BFGMiner before 4.1.0 allow remote pool servers to have unspecified impact via a (1) large or (2) negative value in the Extranonc2_size parameter in a mining.subscribe response and a crafted mining.notify request.

Why this priority

Critical severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	3.3% (top 11%)
CISA exploited list	No
Weakness	CWE-119
Published	2014-07-23
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: bfgminer · sgminer project

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

Am I affected?

Timeline

2014-07-23 14:55 UTCPublished CVE record published
2026-06-17 00:10 UTCUpdated Record last modified

bfgminer bfgminer UPGRADE

Affected: <= 4.0.0 · <= 3.2.9 · 3.2.0 · 3.2.1 · 3.2.2 · 3.2.3 · 3.2.4 · 3.2.5

Fixed in: newer than 4.0.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy bfgminer || rpm -q bfgminer || bfgminer --version

2. UPGRADE to newer than 4.0.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bfgminer

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bfgminer

Note

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

sgminer project sgminer UPGRADE

Affected: <= 4.2.1 · 4.0.0 · 4.1.0 · 4.1.153 · 4.1.242 · 4.1.271 · 4.2.0

Fixed in: newer than 4.2.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy sgminer || rpm -q sgminer || sgminer --version

2. UPGRADE to newer than 4.2.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade sgminer

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade sgminer

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-2014-4502?

bfgminer: upgrade to newer than 4.0.0; sgminer: upgrade to newer than 4.2.1. Exact commands for each OS are on this page.

Is CVE-2014-4502 being exploited?

CVE-2014-4502 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-2014-4502 affect?

CVE-2014-4502 affects bfgminer, sgminer. Severity is high (CVSS 10.0). Multiple heap-based buffer overflows in the parse_notify function in sgminer before 4.2.2, cgminer before 4.3.5, and BFGMiner before 4.1.0 allow remote pool servers to have unspecified impact via a (1) large or (2) negative value in the Ext

How urgent is CVE-2014-4502?

Priority 62/100. Critical severity; Public exploit reference

Related CVEs

CVE-2018-10058 HIGH 8.8 DOWNGRADE DOWNGRADE The remote management interface of cgminer 4.10.0 and bfgminer 5.5.0 allows an authenticated remote attacker t
CVE-2018-10057 MEDIUM 6.5 DOWNGRADE DOWNGRADE The remote management interface of cgminer 4.10.0 and bfgminer 5.5.0 allows an authenticated remote attacker t
CVE-2014-4501 HIGH 10.0 UPGRADE UPGRADE Multiple stack-based buffer overflows in sgminer before 4.2.2, cgminer before 4.3.5, and BFGMiner before 3.3.0

References

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