CVE-2016-10129: The Git Smart Protocol support in libgit2 before 0.24.6 and 0.25.x before 0.25.1 allows remote attackers to ca

Q: How do I fix CVE-2016-10129?

libgit2: upgrade to newer than 0.24.5. Exact commands for each OS are on this page.

Q: Is CVE-2016-10129 being exploited?

CVE-2016-10129 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-2016-10129 affect?

CVE-2016-10129 affects libgit2. Severity is high (CVSS 7.5). The Git Smart Protocol support in libgit2 before 0.24.6 and 0.25.x before 0.25.1 allows remote attackers to cause a denial of service (NULL pointer dereference) via an empty packet line.

Q: How urgent is CVE-2016-10129?

Priority 59/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

This month

HIGH 7.5REMOTEWATCHLISTUPGRADE

CVE-2016-10129 is a high-severity flaw (CVSS 7.5) affecting libgit2. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Git Smart Protocol support in libgit2 before 0.24.6 and 0.25.x before 0.25.1 allows remote attackers to cause a denial of service (NULL pointer dereference) via an empty packet line.

Why this priority

High severity
Remotely exploitable, no login, no user action
On your watchlist

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	3.6% (top 10%)
CISA exploited list	No
Weakness	CWE-476
Published	2017-03-24
Last modified	2026-06-17

Publisher (CNA): Debian GNU/Linux · Vendor: libgit2 project

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

Am I affected?

Timeline

2017-03-24 15:59 UTCPublished CVE record published
2026-06-17 00:39 UTCUpdated Record last modified

libgit2 project libgit2 UPGRADE

Affected: <= 0.24.5 · 0.25.0 · 0.25.0 rc1 · 0.25.0 rc2

Fixed in: newer than 0.24.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy libgit2 || rpm -q libgit2 || libgit2 --version

2. UPGRADE to newer than 0.24.5 (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.

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-2016-10129?

libgit2: upgrade to newer than 0.24.5. Exact commands for each OS are on this page.

Is CVE-2016-10129 being exploited?

CVE-2016-10129 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-2016-10129 affect?

CVE-2016-10129 affects libgit2. Severity is high (CVSS 7.5). The Git Smart Protocol support in libgit2 before 0.24.6 and 0.25.x before 0.25.1 allows remote attackers to cause a denial of service (NULL pointer dereference) via an empty packet line.

How urgent is CVE-2016-10129?

Priority 59/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Git vulnerabilities

Related CVEs

CVE-2024-24577 HIGH 8.6 UPGRADE libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid API
CVE-2024-24575 HIGH 7.5 UPGRADE libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid API
CVE-2023-22742 MEDIUM 5.3 UPGRADE libgit2 is a cross-platform, linkable library implementation of Git
CVE-2020-12279 CRITICAL 9.8 UPGRADE MITIGATE An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0
CVE-2020-12278 CRITICAL 9.8 UPGRADE MITIGATE An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0

References

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