How severe is CVE-2017-15548?

CVE-2017-15548 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-2017-15548 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-15548?

CVE-2017-15548 primarily affects Emc Avamar Server. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-15548?

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-2017-15548 published?

CVE-2017-15548 was published on 2018-01-05 and last updated on 2026-06-17.

CVE-2017-15548

CVE-2017-15548 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-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Emc Avamar Server
Published: 2018-01-05
Last modified: 2026-06-17

Description

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) 9.0.x, 9.1.x, 9.2.x; and EMC Integrated Data Protection Appliance 2.0. A remote unauthenticated malicious user can potentially bypass application authentication and gain unauthorized root access to the affected systems.

Frequently asked questions

What is CVE-2017-15548?: 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) 9.0.x, 9.1.x, 9.2.x; and EMC Integrated Data Protection Appliance 2.0. A remote unauthenticated malicious user can potentially bypass application authentication and gain unauthorized root access to the affected systems.
How severe is CVE-2017-15548?: CVE-2017-15548 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-2017-15548 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-15548?: CVE-2017-15548 primarily affects Emc Avamar Server. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-15548?: 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-2017-15548 published?: CVE-2017-15548 was published on 2018-01-05 and last updated on 2026-06-17.

References

Affected products (18)

cpe:2.3:a:emc:avamar_server:7.1-21:sp2:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.1-145:sp1:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.1-302:*:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.1-370:*:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.2-32:sp1:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.2-309:*:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.2-401:*:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.3-125:sp1:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.3-211:*:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.3-226:*:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.3-233:*:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.4-58:sp1:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.4-242:*:*:*:*:*:*:*
cpe:2.3:a:emc:avamar_server:7.5-183:*:*:*:*:*:*:*
cpe:2.3:a:emc:integrated_data_protection_appliance:2.0:*:*:*:*:*:*:*
cpe:2.3:a:emc:networker:9.0:*:*:*:virtual:*:*:*
cpe:2.3:a:emc:networker:9.1:*:*:*:virtual:*:*:*
cpe:2.3:a:emc:networker:9.2:*:*:*:virtual:*:*:*

More vulnerabilities in Emc Avamar Server

CVE-2017-4990 — Critical (CVSS 9.8): 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…
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…
CVE-2016-0903 — Critical (CVSS 9.1): Avamar Data Store (ADS) and Avamar Virtual Edition (AVE) in EMC Avamar Server before 7.3.0-233 rely on client-side…
CVE-2013-3274 — Critical (CVSS 9.0): EMC Avamar Server and Avamar Virtual Edition before 7.0 on Data Store Gen3, Gen4, and Gen4s platforms do not properly…
CVE-2017-15550 — High (CVSS 8.8): 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-2017-15549 — High (CVSS 8.8): 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)…

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Other CWE-287 (Improper Authentication) vulnerabilities

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CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

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