How severe is CVE-2017-4990?

CVE-2017-4990 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-2017-4990 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-4990?

CVE-2017-4990 primarily affects Emc Avamar Server. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-4990?

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-2017-4990 published?

CVE-2017-4990 was published on 2017-06-21 and last updated on 2026-06-17.

CVE-2017-4990

CVE-2017-4990 is a critical-severity vulnerability in Emc Avamar Server with a CVSS 3.x base score of 9.8. 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-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Emc Avamar Server
Published: 2017-06-21
Last modified: 2026-06-17

Description

In EMC Avamar Server Software 7.4.1-58, 7.4.0-242, 7.3.1-125, 7.3.0-233, 7.3.0-226, an unauthorized attacker may leverage the file upload feature of the system maintenance page to load a maliciously crafted file to any directory which could allow the attacker to execute arbitrary code on the Avamar Server system.

Frequently asked questions

What is CVE-2017-4990?: In EMC Avamar Server Software 7.4.1-58, 7.4.0-242, 7.3.1-125, 7.3.0-233, 7.3.0-226, an unauthorized attacker may leverage the file upload feature of the system maintenance page to load a maliciously crafted file to any directory which could allow the attacker to execute arbitrary code on the Avamar Server system.
How severe is CVE-2017-4990?: CVE-2017-4990 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-2017-4990 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-4990?: CVE-2017-4990 primarily affects Emc Avamar Server. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-4990?: 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-2017-4990 published?: CVE-2017-4990 was published on 2017-06-21 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:emc:avamar_server:7.3.0-226:*:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.3.0-233:*:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.3.1-125:*:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.4.0-242:*:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.4.1-58:*:*:*:*:*:*:*

More vulnerabilities in Emc Avamar Server

CVE-2017-15548 — Critical (CVSS 9.8): An issue was discovered in EMC Avamar Server 7.1.x, 7.2.x, 7.3.x, 7.4.x, 7.5.0; EMC NetWorker Virtual Edition (NVE)…
CVE-2017-4989 — Critical (CVSS 9.8): In EMC Avamar Server Software 7.3.1-125, 7.3.0-233, 7.3.0-226, 7.2.1-32, 7.2.1-31, 7.2.0-401, an unauthenticated remote…
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