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CVE-2022-23521

64
FAUCET Score

CVE-2022-23521 is a critical integer overflow vulnerability affecting Git, specifically when parsing crafted .gitattributes files. This flaw can lead to arbitrary heap reads and writes, potentially resulting in remote code execution. With a CVSS score of 9.8, it is highly severe, requiring no user interaction and having low attack complexity, making it easily exploitable over a network. While there is no known active exploitation or public exploit code, the vulnerability has garnered significant community attention and media coverage, indicating a high potential for future exploitation. Users are strongly advised to upgrade to patched Git versions (v2.30.7 and newer) immediately as no workarounds exist.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.30.6CPE matchmatch criteria
cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*
>= 2.31.0, <= 2.31.5CPE matchmatch criteria
cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*
>= 2.32.0, <= 2.32.4CPE matchmatch criteria
cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*
>= 2.33.0, <= 2.33.5CPE matchmatch criteria
cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*
>= 2.34.0, <= 2.34.5CPE matchmatch criteria
cpe:2.3:a:git-scm:git:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
56.33%
Probability of exploitation in next 30 days
EPSS Percentile
99.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.5633 is in the 97th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

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 (19)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: Microsoft Visual Studio 2022 version 17.4Fixed in: 17.4.5
View patch
microsoftpatch availablevia msrc
Product: Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)Fixed in: 15.9.52
View patch
microsoftpatch availablevia msrc
Product: Microsoft Visual Studio 2022 version 17.2Fixed in: 17.2.13
View patch
microsoftpatch availablevia msrc
Product: Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10)Fixed in: 16.11.24
View patch
microsoftpatch availablevia msrc
Product: Microsoft Visual Studio 2022 version 17.0Fixed in: 17.0.19
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceFixed in: git-0:2.18.4-3.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Extended Update SupportFixed in: git-0:2.27.0-3.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: git-0:2.31.1-3.el8_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: git-0:2.31.1-3.el9_1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: git-0:2.31.1-3.el9_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-git227-git-0:2.27.0-4.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Fixed in: redhat-virtualization-host-0:4.5.3-202304051438_8.6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsFixed in: git-0:2.18.4-3.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: git-0:1.8.3.1-24.el7_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: git-0:2.31.1-3.el8_7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsFixed in: git-0:2.18.4-2.el8_1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Advanced Update SupportFixed in: git-0:2.18.4-3.el8_2
View patch
redhatno patchvia redhat_api
Product: Red Hat JBoss Data Grid 7Fixed in: git

Vendor Advisories (2)

microsoft2023-Feb/CVE-2022-23521Important

GitHub: CVE-2022-23521 gitattributes parsing integer overflow

Feb 14, 2023
redhatCVE-2022-23521Important

git: gitattributes parsing integer overflow

Jan 17, 2023

References

github.com / git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76
PatchThird Party Advisory
github.com / git/git/security/advisories/GHSA-c738-c5qq-xg89
Third Party Advisory
security.gentoo.org / glsa/202312-15