CVE-2022-39260Public exploitNetwork attack vector

Remote code execution via split_cmdline integer overflow

Published Oct 19, 2022 · Updated Aug 3, 2024

Heap overflow in Git allows remote authenticated users to execute arbitrary code through an SSH-exposed interactive git shell. split_cmdline() stores string indexes and argument counts in signed int variables, so input longer than 2 GiB wraps them and causes out-of-bounds heap reads and writes before execv() receives the array. Exploitation requires Git server access and a login account configured for git shell with the $HOME/git-shell-commands directory present; code runs as that account.

CVSS severity8.5
High
EPSS probability3.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap overflow in Git allows remote authenticated users to execute arbitrary code through an SSH-exposed interactive git shell. split_cmdline() stores string indexes and argument counts in signed int variables, so input longer than 2 GiB wraps them and causes out-of-bounds heap reads and writes before execv() receives the array. Exploitation requires Git server access and a login account configured for git shell with the $HOME/git-shell-commands directory present; code runs as that account.

The record

CVE
CVE-2022-39260
Published
Oct 19, 2022
Updated
Aug 3, 2024
Vendor
Git
Product
Git
Classifications
CWE-787, CWE-122, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 19, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2.30.6
  2. Affected versionversion=> 2.31.0, < 2.31.5
  3. Affected versionversion=> 2.32.0, < 2.32.4
  4. Affected versionversion=> 2.33.0, < 2.33.5
  5. Affected versionversion=> 2.34.0, < 2.34.5
  6. Affected versionversion=> 2.34.0, < 2.35.5
  7. Affected versionversion=> 2.35.0, < 2.36.3
  8. Affected versionversion=> 2.37.0, < 2.37.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Git · Gitversion=< 2.30.6; version=> 2.31.0, < 2.31.5; version=> 2.32.0, < 2.32.4; version=> 2.33.0, < 2.33.5; version=> 2.34.0, < 2.34.5; version=> 2.34.0, < 2.35.5; version=> 2.35.0, < 2.36.3; version=> 2.37.0, < 2.37.4

Published CVSS scores

8.5GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-122Heap-based Buffer Overflow
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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