CVE-2020-28949PEAR Archive_Tar Deserialization of Untrusted Data Vulnerability

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.

7.8 HIGHEPSS 84.55%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-06-17 03:10 UTC

OverviewCVSS details

7.8HIGHCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: Nov 19, 2020
Assigner: mitre

Affected

archive tar (php)

Versions: before 1.4.12
Fixed in: 1.4.12

+3 more products →

Exploitation

Public exploit: Yes · 2 references
CISA KEV: Listed · Aug 25, 2022
KEV due date: Sep 15, 2022
Ransomware use: Unknown
SSVC: Exploitation active · Automatable no · Impact total

EPSS · FIRST, scored Nov 6

84.55%chance of exploitation in 30 days

Higher than 99.70% of CVEs

CVSS 3.1 · NVD

7.8High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack vector: Local
Attack complexity: Low
Privileges required: None
User interaction: Required
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 2.0 · NVD

6.8Medium

AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack vector: Network
Attack complexity: Medium
Authentication: None
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
7.8	HIGH	3.1NVD	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8	MEDIUM	2.0NVD	AV:N/AC:M/Au:N/C:P/I:P/A:P

CISA required action

⚡ Known exploited · remediation due Sep 15, 2022

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Details

CVE ID: CVE-2020-28949
Status: Analyzed
Assigner (CNA): mitre
Published: Nov 19, 2020
Last modified: 2026-06-17 03:10 UTC
Weaknesses: CWE-74

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-07 14:05 UTC.