How severe is CVE-2021-31159?

CVE-2021-31159 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-31159 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-31159?

CVE-2021-31159 primarily affects Zohocorp Manageengine Servicedesk Plus Msp. In total, 112 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-31159?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-31159 published?

CVE-2021-31159 was published on 2021-06-16 and last updated on 2026-06-17.

CVE-2021-31159

CVE-2021-31159 is a medium-severity vulnerability in Zohocorp Manageengine Servicedesk Plus Msp with a CVSS 3.x base score of 5.3. Its EPSS exploit-prediction score of 18% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-209.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 18% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-209
Affected product: Zohocorp Manageengine Servicedesk Plus Msp
Published: 2021-06-16
Last modified: 2026-06-17

Description

Zoho ManageEngine ServiceDesk Plus MSP before 10519 is vulnerable to a User Enumeration bug due to improper error-message generation in the Forgot Password functionality, aka SDPMSP-15732.

Frequently asked questions

What is CVE-2021-31159?: Zoho ManageEngine ServiceDesk Plus MSP before 10519 is vulnerable to a User Enumeration bug due to improper error-message generation in the Forgot Password functionality, aka SDPMSP-15732.
How severe is CVE-2021-31159?: CVE-2021-31159 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-31159 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-31159?: CVE-2021-31159 primarily affects Zohocorp Manageengine Servicedesk Plus Msp. In total, 112 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-31159?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-31159 published?: CVE-2021-31159 was published on 2021-06-16 and last updated on 2026-06-17.

References

Affected products (112)

cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:*:*:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10500:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10501:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10502:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10503:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10504:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10505:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10506:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10507:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10508:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10509:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10510:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10511:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10512:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10513:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10514:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10515:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10516:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10517:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:10518:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8000:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8001:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8002:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8003:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8004:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8100:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8101:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8102:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8103:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8104:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8105:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8200:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8201:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8202:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8203:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8204:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8205:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8206:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8207:*:*:*:*:*:*
cpe:2.3:a:zohocorp:manageengine_servicedesk_plus_msp:10.5:8208:*:*:*:*:*:*

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