How severe is CVE-2016-10128?

CVE-2016-10128 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-10128 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-10128?

CVE-2016-10128 primarily affects Libgit2 Project Libgit2. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-10128?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2016-10128 published?

CVE-2016-10128 was published on 2017-03-24 and last updated on 2026-06-17.

CVE-2016-10128

CVE-2016-10128 is a critical-severity vulnerability in Libgit2 Project Libgit2 with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Libgit2 Project Libgit2
Published: 2017-03-24
Last modified: 2026-06-17

Description

Buffer overflow in the git_pkt_parse_line function in transports/smart_pkt.c in the Git Smart Protocol support in libgit2 before 0.24.6 and 0.25.x before 0.25.1 allows remote attackers to have unspecified impact via a crafted non-flush packet.

Frequently asked questions

What is CVE-2016-10128?: Buffer overflow in the git_pkt_parse_line function in transports/smart_pkt.c in the Git Smart Protocol support in libgit2 before 0.24.6 and 0.25.x before 0.25.1 allows remote attackers to have unspecified impact via a crafted non-flush packet.
How severe is CVE-2016-10128?: CVE-2016-10128 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-10128 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-10128?: CVE-2016-10128 primarily affects Libgit2 Project Libgit2. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-10128?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2016-10128 published?: CVE-2016-10128 was published on 2017-03-24 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:libgit2_project:libgit2:*:*:*:*:*:*:*:*
cpe:2.3:a:libgit2_project:libgit2:0.25.0:*:*:*:*:*:*:*
cpe:2.3:a:libgit2_project:libgit2:0.25.0:rc1:*:*:*:*:*:*
cpe:2.3:a:libgit2_project:libgit2:0.25.0:rc2:*:*:*:*:*:*

More vulnerabilities in Libgit2 Project Libgit2

CVE-2016-10129 — 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…
CVE-2016-10130 — Medium (CVSS 5.9): The http_connect function in transports/http.c in libgit2 before 0.24.6 and 0.25.x before 0.25.1 might allow…
CVE-2016-8569 — Medium (CVSS 5.5): The git_oid_nfmt function in commit.c in libgit2 before 0.24.3 allows remote attackers to cause a denial of service…
CVE-2016-8568 — Medium (CVSS 5.5): The git_commit_message function in oid.c in libgit2 before 0.24.3 allows remote attackers to cause a denial of service…

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