How severe is CVE-2021-34683?

CVE-2021-34683 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-2021-34683 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-34683?

CVE-2021-34683 affects Eic E-document System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-34683?

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

When was CVE-2021-34683 published?

CVE-2021-34683 was published on 2021-06-16 and last updated on 2026-06-17.

CVE-2021-34683

CVE-2021-34683 is a medium-severity vulnerability in Eic E-document System with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Eic E-document System
Published: 2021-06-16
Last modified: 2026-06-17

Description

An issue was discovered in EXCELLENT INFOTEK CORPORATION (EIC) E-document System 3.0. A remote attacker can use kw/auth/bbs/asp/get_user_email_info_bbs.asp to obtain the contact information (name and e-mail address) of everyone in the entire organization. This information can allow remote attackers to perform social engineering or brute force attacks against the system login page.

Frequently asked questions

What is CVE-2021-34683?: An issue was discovered in EXCELLENT INFOTEK CORPORATION (EIC) E-document System 3.0. A remote attacker can use kw/auth/bbs/asp/get_user_email_info_bbs.asp to obtain the contact information (name and e-mail address) of everyone in the entire organization. This information can allow remote attackers to perform social engineering or brute force attacks against the system login page.
How severe is CVE-2021-34683?: CVE-2021-34683 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-2021-34683 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-34683?: CVE-2021-34683 affects Eic E-document System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-34683?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-34683 published?: CVE-2021-34683 was published on 2021-06-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:eic:e-document_system:3.0:*:*:*:*:*:*:*

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