CVE-2015-7521

The authorization framework in Apache Hive 1.0.0, 1.0.1, 1.1.0, 1.1.1, 1.2.0 and 1.2.1, on clusters protected by Ranger and SqlStdHiveAuthorization, allows attackers to bypass intended parent table access restrictions via unspecified partition-level operations.

Published: 2016-01-29 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2015-7521 is rated High Risk (70.6/100): CVSS High severity, with high exploitation likelihood (EPSS 6.12%, 92th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +5.71% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-7521

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.40% 6.12% +5.71%
2 2025-07-07 0.74% 0.40% -0.33%
3 2025-06-17 0.74%

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-7521

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.3 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
3.9 3.7 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 6.4 [email protected]

Weakness enumeration for CVE-2015-7521

GitHub Security Advisory for CVE-2015-7521

GHSA-83r3-c79w-f6wc · Severity: high · Ecosystem: maven — High severity vulnerability that affects org.apache.hive:hive, org.apache.hive:hive-exec, and org.apache.hive:hive-service

Affected software / configurations for CVE-2015-7521

Vendor Product Version Raw CPE
apache hive 1.0.0 cpe:2.3:a:apache:hive:1.0.0:*:*:*:*:*:*:*
apache hive 1.0.1 cpe:2.3:a:apache:hive:1.0.1:*:*:*:*:*:*:*
apache hive 1.1.0 cpe:2.3:a:apache:hive:1.1.0:*:*:*:*:*:*:*
apache hive 1.2.0 cpe:2.3:a:apache:hive:1.2.0:*:*:*:*:*:*:*
apache hive 1.2.1 cpe:2.3:a:apache:hive:1.2.1:*:*:*:*:*:*:*

References for CVE-2015-7521

cvelogic Threat Intelligence