Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2019-13638

27
FAUCET Score

CVE-2019-13638 is a critical OS shell command injection vulnerability affecting GNU patch through version 2.7.6, including Debian Linux distributions. This flaw allows an attacker to execute arbitrary commands by tricking a user into opening a specially crafted patch file containing malicious ed style diff payloads. With a CVSS score of 7.8 (HIGH), the vulnerability has a low attack complexity and requires user interaction, but can lead to complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the potential impact warrants attention.

Impacted Technologies

VendorProductVersion(s)CPE
2.7.6CPE matchmatch criteria
cpe:2.3:a:gnu:patch:2.7.6:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.49%
Probability of exploitation in next 30 days
EPSS Percentile
90.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0449 is in the 91st percentile among its peer group of 11,617 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (38)

microsoftpatch availablevia msrc
Product: patch-2.7.6-9.azl3.aarch64.rpm on Azure Linux 3.0 ARMFixed in: 2.7.6-9
microsoftpatch availablevia msrc
Product: 16926-16823Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: 16927-16817Fixed in: 2.7.6-9
microsoftpatch availablevia msrc
Product: 16927-17084Fixed in: 2.7.6-9
microsoftpatch availablevia msrc
Product: patch-debuginfo-2.7.6-7.cm1.aarch64.rpm on CBL Mariner 1.0 ARMFixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: patch-2.7.6-7.cm2.x86_64.rpm on CBL Mariner 2.0 x64Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: patch-debuginfo-2.7.6-7.cm2.x86_64.rpm on CBL Mariner 2.0 x64Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: patch-2.7.6-7.cm2.aarch64.rpm on CBL Mariner 2.0 ARMFixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: patch-debuginfo-2.7.6-7.cm2.aarch64.rpm on CBL Mariner 2.0 ARMFixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: patch-2.7.6-9.azl3.x86_64.rpm on Azure Linux 3.0 x64Fixed in: 2.7.6-9
microsoftpatch availablevia msrc
Product: 16925-16820Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: cm1 patch 2.7.6-7 on CBL Mariner 1.0Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: cbl2 patch 2.7.6-7 on CBL Mariner 2.0Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: azl3 patch 2.7.6-9 on Azure Linux 3.0Fixed in: 2.7.6-9
microsoftpatch availablevia msrc
Product: 13120-12137Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: 13121-12137Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: 13122-12138Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: 13123-12138Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: 13124-12139Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: 13125-12139Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: 13126-12140Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: 13127-12140Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: 13128-12356Fixed in: 2.7.6-9
microsoftpatch availablevia msrc
Product: 13129-12357Fixed in: 2.7.6-9
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: patch-2.7.6-7.cm1.x86_64.rpm on CBL Mariner 1.0 x64Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: patch-debuginfo-2.7.6-7.cm1.x86_64.rpm on CBL Mariner 1.0 x64Fixed in: 2.7.6-7
microsoftpatch availablevia msrc
Product: patch-2.7.6-7.cm1.aarch64.rpm on CBL Mariner 1.0 ARMFixed in: 2.7.6-7
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: patch-0:2.7.1-12.el7_7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Advanced Update SupportFixed in: patch-0:2.7.1-11.el7_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Telco Extended Update SupportFixed in: patch-0:2.7.1-11.el7_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Update Services for SAP SolutionsFixed in: patch-0:2.7.1-11.el7_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.5 Extended Update SupportFixed in: patch-0:2.7.1-11.el7_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.6 Extended Update SupportFixed in: patch-0:2.7.1-11.el7_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: patch-0:2.7.6-9.el8_0
View patch

Vendor Advisories (4)

microsoft2024-Jun/CVE-2019-13638

CVE-2019-13638

Jun 11, 2024
microsoft2021-Dec/CVE-2019-13638

CVE-2019-13638

Dec 14, 2021
redhatCVE-2019-13638Important

patch: OS shell command injection when processing crafted patch files

Jul 29, 2019
microsoft2019-Jul/CVE-2019-13638Important

GNU patch through 2.7.6 is vulnerable to OS shell command injection that can be exploited by opening a crafted patch file that contains an ed style diff payload with shell metacharacters. The ed editor does not need to be present on the vulnerable system. This is different from CVE-2018-1000156.

Jul 9, 2019

References

packetstormsecurity.com / files/154124/GNU-patch-Command-Injection-Directory-Traversal.html
access.redhat.com / errata/RHSA-2019:2798
access.redhat.com / errata/RHSA-2019:2964
access.redhat.com / errata/RHSA-2019:3757
access.redhat.com / errata/RHSA-2019:3758
access.redhat.com / errata/RHSA-2019:4061
github.com / irsl/gnu-patch-vulnerabilities
git.savannah.gnu.org / cgit/patch.git/commit
Mailing ListPatchVendor Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/SVWWGISFWACROJJPVJJL4UBLVZ7LPOLT
seclists.org / bugtraq/2019/Aug/29
seclists.org / bugtraq/2019/Jul/54
Mailing ListThird Party Advisory
security.gentoo.org / glsa/201908-22
security.netapp.com / advisory/ntap-20190828-0001
security-tracker.debian.org / tracker/CVE-2019-13638
Third Party Advisory
debian.org / security/2019/dsa-4489
Third Party Advisory