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CVE-2014-9390: Git before 1.8.5.6, 1.9.x before 1.9.5, 2.0.x before 2.0.5, 2.1.x before 2.1.4, and 2.2.x before 2.2.1 on Wind

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CRITICAL 9.8REMOTEUPGRADEUPGRADEUPGRADE

CVE-2014-9390 is a critical-severity flaw (CVSS 9.8) affecting git, mercurial, xcode. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Git before 1.8.5.6, 1.9.x before 1.9.5, 2.0.x before 2.0.5, 2.1.x before 2.1.4, and 2.2.x before 2.2.1 on Windows and OS X; Mercurial before 3.2.3 on Windows and OS X; Apple Xcode before 6.2 beta 3; mine all versions before 08-12-2014; libgit2 all versions up to 0.21.2; Egit all versions before 08-12-2014; and JGit all versions before 08-12-2014 allow remote Git servers to execute arbitrary commands via a tree containing a crafted .git/config fil

Why this priority

  • Critical severity
  • EPSS top 1%: very likely to be exploited
  • Public exploit reference
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score9.8 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance75.6% (top 1%)
CISA exploited listNo
WeaknessCWE-20
Published2020-02-12
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: apple · eclipse · git-scm · libgit2 · mercurial

Share: LinkedIn · X · Reddit

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

Am I affected?

Timeline

git-scm git UPGRADE
Affected: < 1.8.5.6 · >= 1.9.0 and < 1.9.5 · >= 2.0.0 and < 2.0.5 · >= 2.1.0 and < 2.1.4 · >= 2.2.0 and < 2.2.1
Fixed in: 1.8.5.6, 1.9.5, 2.0.5, 2.1.4, 2.2.1
Safe to downgrade to: a release before 1.9.0
1. Check installed version
apt-cache policy git || rpm -q git || git --version
2. UPGRADE to 1.8.5.6 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade git
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade git
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 1.9.0 (Debian / Ubuntu)
apt-cache madison git sudo apt install git=<VERSION_BEFORE_1.9.0> sudo apt-mark hold git
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list git sudo dnf downgrade git-<VERSION_BEFORE_1.9.0> sudo dnf versionlock add git
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
mercurial mercurial UPGRADE
Affected: < 3.2.3
Fixed in: 3.2.3
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy mercurial || rpm -q mercurial || mercurial --version
2. UPGRADE to 3.2.3 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade mercurial
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade mercurial
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
apple xcode UPGRADE
Affected: <= 6.1.1 · 6.2 · 6.2 beta_2
Fixed in: newer than 6.1.1
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy xcode || rpm -q xcode || xcode --version
2. UPGRADE to newer than 6.1.1 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade xcode
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade xcode
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
eclipse egit UPGRADE
Affected: < 08-12-2014
Fixed in: 08-12-2014
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy egit || rpm -q egit || egit --version
2. UPGRADE to 08-12-2014 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade egit
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade egit
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
eclipse jgit UPGRADE
Affected: < 3.4.2 · >= 3.5.0 and < 3.5.3
Fixed in: 3.4.2, 3.5.3
Safe to downgrade to: a release before 3.5.0
1. Check installed version
apt-cache policy jgit || rpm -q jgit || jgit --version
2. UPGRADE to 3.4.2 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade jgit
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade jgit
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 3.5.0 (Debian / Ubuntu)
apt-cache madison jgit sudo apt install jgit=<VERSION_BEFORE_3.5.0> sudo apt-mark hold jgit
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list jgit sudo dnf downgrade jgit-<VERSION_BEFORE_3.5.0> sudo dnf versionlock add jgit
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
libgit2 libgit2 UPGRADE
Affected: < 0.21.3
Fixed in: 0.21.3
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy libgit2 || rpm -q libgit2 || libgit2 --version
2. UPGRADE to 0.21.3 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade libgit2
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade libgit2
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

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-2014-9390?

git: upgrade to 1.8.5.6, 1.9.5, 2.0.5, 2.1.4, 2.2.1; mercurial: upgrade to 3.2.3; xcode: upgrade to newer than 6.1.1. Exact commands for each OS are on this page.

Is CVE-2014-9390 being exploited?

CVE-2014-9390 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-2014-9390 affect?

CVE-2014-9390 affects git, mercurial, xcode. Severity is critical (CVSS 9.8). Git before 1.8.5.6, 1.9.x before 1.9.5, 2.0.x before 2.0.5, 2.1.x before 2.1.4, and 2.2.x before 2.2.1 on Windows and OS X; Mercurial before 3.2.3 on Windows and OS X; Apple Xcode before 6.2 beta 3; mine all versions before 08-12-2014; libg

How urgent is CVE-2014-9390?

Priority 69/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Windows vulnerabilities · Git vulnerabilities

Related CVEs

References

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