How severe is CVE-2021-28959?

CVE-2021-28959 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-28959 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-28959?

CVE-2021-28959 primarily affects Zohocorp Manageengine Eventlog Analyzer. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-28959?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-28959 published?

CVE-2021-28959 was published on 2021-04-30 and last updated on 2026-06-17.

CVE-2021-28959

CVE-2021-28959 is a critical-severity vulnerability in Zohocorp Manageengine Eventlog Analyzer with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 17% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 17% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Zohocorp Manageengine Eventlog Analyzer
Published: 2021-04-30
Last modified: 2026-06-17

Description

Zoho ManageEngine Eventlog Analyzer through 12147 is vulnerable to unauthenticated directory traversal via an entry in a ZIP archive. This leads to remote code execution.

Frequently asked questions

What is CVE-2021-28959?: Zoho ManageEngine Eventlog Analyzer through 12147 is vulnerable to unauthenticated directory traversal via an entry in a ZIP archive. This leads to remote code execution.
How severe is CVE-2021-28959?: CVE-2021-28959 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-28959 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 17% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-28959?: CVE-2021-28959 primarily affects Zohocorp Manageengine Eventlog Analyzer. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-28959?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-28959 published?: CVE-2021-28959 was published on 2021-04-30 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:zohocorp:manageengine_eventlog_analyzer:*:*:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_eventlog_analyzer:12.1.4:-:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_eventlog_analyzer:12.1.4:12141:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_eventlog_analyzer:12.1.4:12145:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_eventlog_analyzer:12.1.4:12146:*:*:*:*:*:*

More vulnerabilities in Zohocorp Manageengine Eventlog Analyzer

CVE-2020-24786 — Critical (CVSS 9.8): An issue was discovered in Zoho ManageEngine Exchange Reporter Plus before build number 5510, AD360 before build number…
CVE-2019-19774 — High (CVSS 8.8): An issue was discovered in Zoho ManageEngine EventLog Analyzer 10.0 SP1 before Build 12110. By running "select…
CVE-2023-35785 — High (CVSS 8.1): Zoho ManageEngine Active Directory 360 versions 4315 and below, ADAudit Plus 7202 and below, ADManager Plus 7200 and…
CVE-2019-12133 — High (CVSS 7.8): Multiple Zoho ManageEngine products suffer from local privilege escalation due to improper permissions for the…
CVE-2014-6039 — High (CVSS 7.5): ManageEngine EventLog Analyzer version 7 through 9.9 build 9002 has a Credentials Disclosure Vulnerability. Fixed…
CVE-2014-6038 — High (CVSS 7.5): Zoho ManageEngine EventLog Analyzer versions 7 through 9.9 build 9002 have a database Information Disclosure…

All CVEs affecting Zohocorp Manageengine Eventlog Analyzer →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-48282 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted…
CVE-2026-54917 — Critical (CVSS 10.0): SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the…
CVE-2026-11429 — Critical (CVSS 10.0): Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file…
CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
CVE-2026-36767 — Critical (CVSS 10.0): A path traversal vulnerability in the /content/images/add endpoint of shopizer v3.2.5 allows attackers write arbitrary…

Browse all CWE-22 (Path Traversal) vulnerabilities →