Is CVE-2018-17456 being actively exploited?

CVE-2018-17456 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2018-17456?

CVE-2018-17456 has a CVSS 3.0 base score of 9.8 (CRITICAL).

CVE-2018-17456

CRITICAL · CVSS 9.8EPSS 97.4%EU EUVD

Git before 2.14.5, 2.15.x before 2.15.3, 2.16.x before 2.16.5, 2.17.x before 2.17.2, 2.18.x before 2.18.1, and 2.19.x before 2.19.1 allows remote code execution during processing of a recursive "git clone" of a superproject if a .gitmodules file has a URL field beginning with a '-' character.

Key facts

CVSS score: 9.8 (v3.0)
Severity: CRITICAL
CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-88
EPSS score: 97.4% (100th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2018-9209)
Published: October 6, 2018
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2018-9209 in the EU Vulnerability Database. Last updated in EUVD on August 5, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
debian / debian linux
git-scm / git
redhat / ansible tower
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux desktop
redhat / enterprise linux server
redhat / enterprise linux server aus
redhat / enterprise linux server eus
redhat / enterprise linux server tus
redhat / enterprise linux workstation

Certified products that may be affected

8 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Red Hat Enterprise Linux 7 NSS Cryptographic Module - Red Hat®, Inc. - FIPS 140 4498 - historical
Red Hat Enterprise Linux 7 Kernel Crypto API Cryptographic Module - Red Hat®, Inc. - FIPS 140 3939 - historical
Red Hat Enterprise Linux 7 OpenSSH Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 3891 - historical
Red Hat Enterprise Linux 7 OpenSSH Client Cryptographic Module - Red Hat®, Inc. - FIPS 140 3892 - historical
Red Hat Enterprise Linux 7 OpenSSL Cryptographic Module - Red Hat®, Inc. - FIPS 140 3867 - historical

See all 8 in the Security Certifications Explorer.

References

http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00003.html
http://packetstormsecurity.com/files/152173/Sourcetree-Git-Arbitrary-Code-Execution-URL-Handling.html(Third Party Advisory, VDB Entry)
http://www.securityfocus.com/bid/105523(Third Party Advisory, VDB Entry)
http://www.securityfocus.com/bid/107511(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id/1041811(Third Party Advisory, VDB Entry)
https://access.redhat.com/errata/RHSA-2018:3408(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2018:3505(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2018:3541(Third Party Advisory)
https://access.redhat.com/errata/RHSA-2020:0316
https://github.com/git/git/commit/1a7fd1fb2998002da6e9ff2ee46e1bdd25ee8404(Patch, Third Party Advisory)
https://github.com/git/git/commit/a124133e1e6ab5c7a9fef6d0e6bcb084e3455b46(Patch, Third Party Advisory)
https://marc.info/?l=git&m=153875888916397&w=2(Third Party Advisory)
https://seclists.org/bugtraq/2019/Mar/30(Mailing List, Third Party Advisory)
https://usn.ubuntu.com/3791-1/(Third Party Advisory)
https://www.debian.org/security/2018/dsa-4311(Third Party Advisory)
https://www.exploit-db.com/exploits/45548/(Exploit, Third Party Advisory, VDB Entry)
https://www.exploit-db.com/exploits/45631/(Exploit, Third Party Advisory, VDB Entry)
https://www.openwall.com/lists/oss-security/2018/10/06/3(Mailing List, Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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