CVE-2015-0278: libuv before 0.10.34 does not properly drop group privileges, which allows context-dependent attackers to gain

Q: How do I fix CVE-2015-0278?

fedora: mitigate or apply the listed mitigation; libuv: upgrade to newer than 0.10.33; node.js: upgrade to 0.10.37. Exact commands for each OS are on this page.

Q: Is CVE-2015-0278 being exploited?

CVE-2015-0278 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-2015-0278 affect?

CVE-2015-0278 affects fedora, libuv, node.js. Severity is high (CVSS 10.0). libuv before 0.10.34 does not properly drop group privileges, which allows context-dependent attackers to gain privileges via unspecified vectors.

Q: How urgent is CVE-2015-0278?

Priority 57/100. Critical severity

This month

HIGH 10.0MITIGATEUPGRADEUPGRADE

CVE-2015-0278 is a high-severity flaw (CVSS 10.0) affecting fedora, libuv, node.js. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

libuv before 0.10.34 does not properly drop group privileges, which allows context-dependent attackers to gain privileges via unspecified vectors.

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	3.2% (top 12%)
CISA exploited list	No
Weakness	CWE-273
Published	2015-05-18
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: fedoraproject · libuv project · nodejs

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

Am I affected?

Timeline

2015-05-18 15:59 UTCPublished CVE record published
2026-06-17 00:19 UTCUpdated Record last modified

fedoraproject fedora MITIGATE

Affected: 21

Fixed in: no fixed release known

Safe to downgrade to: a release before 21

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

libuv project libuv UPGRADE

Affected: <= 0.10.33

Fixed in: newer than 0.10.33

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 0.10.33 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade libuv

Note

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

nodejs node.js UPGRADE

Affected: < 0.10.37

Fixed in: 0.10.37

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy node.js || rpm -q node.js || node.js --version

2. UPGRADE to 0.10.37 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade node.js

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade node.js

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-2015-0278?

fedora: mitigate or apply the listed mitigation; libuv: upgrade to newer than 0.10.33; node.js: upgrade to 0.10.37. Exact commands for each OS are on this page.

Is CVE-2015-0278 being exploited?

CVE-2015-0278 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-2015-0278 affect?

CVE-2015-0278 affects fedora, libuv, node.js. Severity is high (CVSS 10.0). libuv before 0.10.34 does not properly drop group privileges, which allows context-dependent attackers to gain privileges via unspecified vectors.

How urgent is CVE-2015-0278?

Priority 57/100. Critical severity

Software pages

Node.js vulnerabilities

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References

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