Vulnerability Intelligence Report
PEAR Archive_Tar Deserialization of Untrusted Data Vulnerability
CVE-2020-28949
Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks, and thus any other stream-wrapper attack (such as file:// to overwrite files) can still succeed.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:84.55%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-74 ↗CWE-74 (via CISA KEV)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| php | archive_tar | all |
| debian | debian_linux | 9.0, 10.0 |
| fedoraproject | fedora | 32, 33, 34, 35 |
| drupal | drupal | all |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2020-11-19T00:00:00 |
| Published | 2020-11-19T18:14:18 |
| Last Updated | 2025-10-21T23:35:32 |
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