CVE-2020-35451 | Oozie local privilege escalation

There is a race condition in OozieSharelibCLI in Apache Oozie before version 5.2.1 which allows a malicious attacker to replace the files in Oozie's sharelib during it's creation.

Published: 2021-03-09 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2020-35451 is rated Low Risk (31.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.43%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2020-35451

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 0.13% 0.43% +0.30%
2 2025-03-17 0.04% 0.13% +0.09%
3 2024-01-30 0.04%

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-35451

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.7 3.1 MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
1.0 3.6 [email protected]
1.9 2.0 LOW
AV:L/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
3.4 2.9 [email protected]

Weakness enumeration for CVE-2020-35451

Affected software / configurations for CVE-2020-35451

Vendor Product Version Raw CPE
apache oozie < 5.2.1 cpe:2.3:a:apache:oozie:*:*:*:*:*:*:*:*

References for CVE-2020-35451

cvelogic Threat Intelligence