How severe is CVE-2021-40172?

CVE-2021-40172 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-40172 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40172?

CVE-2021-40172 primarily affects Zohocorp Manageengine Log360. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-40172?

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

When was CVE-2021-40172 published?

CVE-2021-40172 was published on 2021-08-29 and last updated on 2026-06-17.

CVE-2021-40172

CVE-2021-40172 is a high-severity vulnerability in Zohocorp Manageengine Log360 with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Zohocorp Manageengine Log360
Published: 2021-08-29
Last modified: 2026-06-17

Description

Zoho ManageEngine Log360 before Build 5219 allows a CSRF attack on proxy settings.

Frequently asked questions

What is CVE-2021-40172?: Zoho ManageEngine Log360 before Build 5219 allows a CSRF attack on proxy settings.
How severe is CVE-2021-40172?: CVE-2021-40172 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-40172 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40172?: CVE-2021-40172 primarily affects Zohocorp Manageengine Log360. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-40172?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-40172 published?: CVE-2021-40172 was published on 2021-08-29 and last updated on 2026-06-17.

References

https://www.manageengine.com/log-management/readme.html#Build%205219

Affected products (10)

cpe:2.3:a:zohocorp:manageengine_log360:*:*:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_log360:5.2:build5200:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_log360:5.2:build5201:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_log360:5.2:build5206:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_log360:5.2:build5209:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_log360:5.2:build5210:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_log360:5.2:build5211:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_log360:5.2:build5213:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_log360:5.2:build5214:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_log360:5.2:build5218:*:*:*:*:*:*

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