CVE-2016-20048
CVE-2016-20048 is a high-severity vulnerability with a CVSS 3.x base score of 8.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: High (CVSS 3.x base score 8.4)
- CVSS v4: 8.6
- EPSS exploit prediction: 0% (6th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2016-10850
- Weakness: CWE-22
- Published:
- Last modified:
Description
iSelect 1.4.0-2+b1 contains a local buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized value to the -k/--key parameter. Attackers can craft a malicious argument containing a NOP sled, shellcode, and return address to overflow a 1024-byte stack buffer and gain code execution with user privileges.
Frequently asked questions
- What is CVE-2016-20048?
- iSelect 1.4.0-2+b1 contains a local buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized value to the -k/--key parameter. Attackers can craft a malicious argument containing a NOP sled, shellcode, and return address to overflow a 1024-byte stack buffer and gain code execution with user privileges.
- How severe is CVE-2016-20048?
- CVE-2016-20048 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2016-20048 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2016-20048?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2016-20048 have an EU (EUVD) identifier?
- Yes. CVE-2016-20048 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2016-10850.
- When was CVE-2016-20048 published?
- CVE-2016-20048 was published on 2026-03-28 and last updated on 2026-06-17.
References
- http://www.ossp.org/pkg/tool/iselect/
- https://www.exploit-db.com/exploits/41076
- https://www.vulncheck.com/advisories/iselect-2-b1-local-buffer-overflow-via-key-parameter
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