CVE-2018-19486

CRITICAL

Git before 2.19.2 on Linux and UNIX executes commands from the current working directory (as if '.' were at the end of $PATH) in certain cases involving the run_command() API and run-command.c, bec...

Affects 3 products across 3 vendors.

CVSS 3.09.8
EPSS4.1%
Percentile91th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity, no authentication required, no user interaction needed, impact contained to the vulnerable component, full confidentiality impact, full integrity impact, full availability impact.
CWE Weakness Definitions
CWE-426: CWE-426
Related Attack Patterns (CAPEC)
CAPEC-38 Leveraging/Manipulating Configuration File Search Paths
via CWE-426

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

This vulnerability was disclosed in 2018. A critical vulnerability affects Canonical systems (CVE-2018-19486). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2018-GLOBAL-127613-C • Model: rule-based-v1 • Confidence: MEDIUM

Is this CVE in your environment?

BreachSpider monitors your ICS/OT environment for vulnerabilities like this one. No agents or network access required. Free to start.

Check My Environment →
Frequently Asked Questions
What is CVE-2018-19486?
This vulnerability was disclosed in 2018. A critical vulnerability affects Canonical systems (CVE-2018-19486). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2018-19486?
CVE-2018-19486 has CVSS 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS: 4.1%.
Is CVE-2018-19486 actively exploited?
No confirmed active exploitation of CVE-2018-19486 as of 2026-09-25.
How do I remediate CVE-2018-19486?
Priority: MEDIUM.
What systems are affected by CVE-2018-19486?
CVE-2018-19486 affects Canonical Ubuntu Linux; Git-Scm Git.
Vulnerability Details
CVE IDCVE-2018-19486
BSIDBS-2018-GLOBAL-127613-C BreachSpider Global ID
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published2018-11-23
Last Modified2026-06-17
ICS Relevance0%
Weakness (CWE)
CWE-426
SourceNVD
Official Description

Git before 2.19.2 on Linux and UNIX executes commands from the current working directory (as if '.' were at the end of $PATH) in certain cases involving the run_command() API and run-command.c, because there was a dangerous change from execvp to execv during 2017.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: Git before 2.19.2 on Linux and UNIX executes commands from the current working directory (as if '.' were at the end of $PATH) in certain cases involving the run_command() API and run-command.c, because there was a dangerous change from execvp to execv during 2017. CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Exploitation Likelihood: LOW

Affected Products
VendorProductAffected Versions
Canonical Ubuntu Linux 18.04 18.10
Git-Scm Git < 2.19.2

Platforms listed by the source (the vulnerable product runs on these; they are not themselves vulnerable): Linux Linux Kernel

Remediation

No official vendor advisory link on record. See the CVE record →

Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 2884 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hashb317a11765837569895375ead80e80b6a091c65171a5675d63a494e557da6fbe5cab38743dae49a5f0fa6793d5cf2c78e8ba86bedb4cd00d9719de8c69b4014c
Related CVEs affecting Canonical
CVE-2012-0444 10.0 Mozilla Firefox before 3.6.26 and 4.x through 9.0, Thunderbird before 3.1.18 ... CVE-2012-3963 10.0 Use-after-free vulnerability in the js::gc::MapAllocToTraceKind function in M... CVE-2012-3961 10.0 Use-after-free vulnerability in the RangeData implementation in Mozilla Firef... CVE-2015-2724 10.0 Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox... CVE-2017-16845 10.0 hw/input/ps2.c in Qemu does not validate 'rptr' and 'count' values during gue...
View all Canonical CVEs →

Critical Severity - Know Your Exposure

A CVSS 9.8 vulnerability in your ICS environment cannot wait. BreachSpider maps critical CVEs to your specific assets and tells you what to fix first.

Create a free account →