Vulnerability DatabaseCVE-2026-55738
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CVE-2026-55738
Published:June 17, 2026
Updated:September 01, 2026
A stack-based buffer overflow exists in the raw_to_header function in src/microtar.c in rxi microtar 0.1.0. The function copies the 100-byte name and linkname fields of a TAR header with strcpy without guaranteeing null termination of the source.
Related Resources (5)
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55738.json
https://github.com/rxi/microtar
https://raw.githubusercontent.com/rxi/microtar/master/src/microtar.c
https://nvd.nist.gov/vuln/detail/CVE-2026-55738
https://github.com/rxi/microtar/blob/master/src/microtar.c#L111
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Null Termination
CWE-170
Stack-based Buffer Overflow
CWE-121
EPSS
Base Score:
0.40