CVE-2026-22211
Essential information
- Published
- 14/01/2026 17:15
- Modified
- —
- Author
- The MITRE Corporation
- Creator
- The MITRE Corporation
- CVSS
- 5.1 MEDIUM (v4.0)
- CISA KEV
- No
- CWE
- CWE-787
- EPSS (First)
- P5.5% EPSS percentile: rank of this vulnerability versus all others. Higher percentile = more likely to be exploited. Learn more (score 0.00159)
- CVSS vector
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CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS metrics
- Access vector
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- Access complexity
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- Authentication
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- Confidentiality impact
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- Integrity impact
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- Availability impact
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- Exploitability
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- Remediation level
- —
- Report confidence
- —
- Temporal score
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- Attack vector
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- Attack complexity
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- Privileges required
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- User interaction
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- Scope
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- Confidentiality impact
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- Integrity impact
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- Availability impact
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- Exploit code maturity
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- Remediation level
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- Report confidence
- —
- Temporal score
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- Attack vector
- LOCAL
- Attack complexity
- LOW
- Attack requirements
- NONE
- Privileges required
- NONE
- User interaction
- NONE
- Confidentiality (V)
- NONE
- Confidentiality (S)
- NONE
- Integrity (V)
- NONE
- Integrity (S)
- NONE
- Availability (V)
- LOW
- Availability (S)
- NONE
- Exploit maturity
- —
Description
TinyOS versions up to and including 2.1.2 contain a global buffer overflow vulnerability in the printfUART formatted output implementation used within the ZigBee / IEEE 802.15.4 networking stack. The implementation formats output into a fixed-size global buffer and concatenates strings for %s format specifiers using strcat() without verifying remaining buffer capacity. When printfUART is invoked with a caller-controlled string longer than the available space, the unbounded sprintf/strcat sequence writes past the end of debugbuf, resulting in global memory corruption. This can cause denial of service, unintended behavior, or information disclosure via corrupted adjacent global state or UART output.
NVD status
- NVD
- View on NVD