CVE-2026-16987
HIGHCVSS 7.8/10EPSS 0.11%
Last modified
CVE-2026-16987 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to gain elevated privileges due to improper validation of the LANG environment variable.. EPSS estimates a 0.11% chance of exploitation in the next 30 days.
Description
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to gain elevated privileges due to improper validation of the LANG environment variable.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ibm | I | 7.3 |
| Ibm | I | 7.4 |
| Ibm | I | 7.5 |
| Ibm | I | 7.6 |
References
- https://www.ibm.com/support/pages/node/7283296Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-16987?
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to gain elevated privileges due to improper validation of the LANG environment variable.
How severe is CVE-2026-16987?
CVE-2026-16987 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.11% probability of exploitation in the next 30 days.
How do I fix CVE-2026-16987?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-16987?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST