Unauthenticated code execution via Bash arithmetic expansion
Published Jan 29, 2026 · Updated Jan 29, 2026
Code injection in Ivanti Endpoint Manager Mobile 12.7.0.0 and earlier allows remote attackers to execute arbitrary code without authentication. An unauthenticated app-store download route passes attacker-controlled st and h values to the map-appstore-url Bash script, where gStartTime triggers nested variable and arithmetic expansion that evaluates command substitution. Network access to the EPMM HTTP service is sufficient, and successful exploitation runs operating-system commands on the appliance.
Summary
What happened
Code injection in Ivanti Endpoint Manager Mobile 12.7.0.0 and earlier allows remote attackers to execute arbitrary code without authentication. An unauthenticated app-store download route passes attacker-controlled st and h values to the map-appstore-url Bash script, where gStartTime triggers nested variable and arithmetic expansion that evaluates command substitution. Network access to the EPMM HTTP service is sufficient, and successful exploitation runs operating-system commands on the appliance.
The record
- CVE
- CVE-2026-1340
- Published
- Jan 29, 2026
- Updated
- Jan 29, 2026
- Vendor
- Ivanti
- Product
- Endpoint Manager Mobile
- Classifications
- CWE-94, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 29, 2026CVE publishedPublication date reported by the CVE source.
- Jan 29, 2026Record updatedLatest update available in the CVE record.
- Apr 8, 2026Exploitation reportedCISA Known Exploited Vulnerabilities catalog entry
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- watchTowr EPMM arithmetic-expansion PoCfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- CISA Known Exploited Vulnerabilities catalog entryknown exploited catalog
Technologies
Your stack
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Your stack
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