How severe is CVE-2018-18660?

CVE-2018-18660 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-18660 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-2018-18660?

CVE-2018-18660 primarily affects Arcserve Udp. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-18660?

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

When was CVE-2018-18660 published?

CVE-2018-18660 was published on 2018-10-26 and last updated on 2026-06-17.

CVE-2018-18660

CVE-2018-18660 is a medium-severity vulnerability in Arcserve Udp with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Arcserve Udp
Published: 2018-10-26
Last modified: 2026-06-17

Description

An issue was discovered in Arcserve Unified Data Protection (UDP) through 6.5 Update 4. There is a DDI-VRT-2018-21 Reflected Cross-site Scripting via /authenticationendpoint/domain.jsp issue.

Frequently asked questions

What is CVE-2018-18660?: An issue was discovered in Arcserve Unified Data Protection (UDP) through 6.5 Update 4. There is a DDI-VRT-2018-21 Reflected Cross-site Scripting via /authenticationendpoint/domain.jsp issue.
How severe is CVE-2018-18660?: CVE-2018-18660 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-18660 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-2018-18660?: CVE-2018-18660 primarily affects Arcserve Udp. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-18660?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-18660 published?: CVE-2018-18660 was published on 2018-10-26 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:arcserve:udp:*:*:*:*:*:*:*:*
cpe:2.3:a:arcserve:udp:6.5:-:*:*:*:*:*:*
cpe:2.3:a:arcserve:udp:6.5:update_1:*:*:*:*:*:*
cpe:2.3:a:arcserve:udp:6.5:update_2:*:*:*:*:*:*
cpe:2.3:a:arcserve:udp:6.5:update_3:*:*:*:*:*:*
cpe:2.3:a:arcserve:udp:6.5:update_4:*:*:*:*:*:*

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