How severe is CVE-2021-32519?

CVE-2021-32519 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-2021-32519 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-32519?

CVE-2021-32519 primarily affects Qsan Sanos. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-32519?

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-2021-32519 published?

CVE-2021-32519 was published on 2021-07-07 and last updated on 2026-06-17.

CVE-2021-32519

CVE-2021-32519 is a critical-severity vulnerability in Qsan Sanos 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-916.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 5.0
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-916
Affected product: Qsan Sanos
Published: 2021-07-07
Last modified: 2026-06-17

Description

Use of password hash with insufficient computational effort vulnerability in QSAN Storage Manager, XEVO, SANOS allows remote attackers to recover the plain-text password by brute-forcing the MD5 hash. The referred vulnerability has been solved with the updated version of QSAN Storage Manager v3.3.2, QSAN XEVO v2.1.0, and QSAN SANOS v2.1.0.

Frequently asked questions

What is CVE-2021-32519?: Use of password hash with insufficient computational effort vulnerability in QSAN Storage Manager, XEVO, SANOS allows remote attackers to recover the plain-text password by brute-forcing the MD5 hash. The referred vulnerability has been solved with the updated version of QSAN Storage Manager v3.3.2, QSAN XEVO v2.1.0, and QSAN SANOS v2.1.0.
How severe is CVE-2021-32519?: CVE-2021-32519 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-2021-32519 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-32519?: CVE-2021-32519 primarily affects Qsan Sanos. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-32519?: 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-2021-32519 published?: CVE-2021-32519 was published on 2021-07-07 and last updated on 2026-06-17.

References

https://www.twcert.org.tw/tw/cp-132-4875-692f0-1.html

Affected products (3)

cpe:2.3:a:qsan:sanos:*:*:*:*:*:*:*:*
cpe:2.3:a:qsan:storage_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:qsan:xevo:*:*:*:*:*:*:*:*

More vulnerabilities in Qsan Sanos

CVE-2021-32535 — Critical (CVSS 9.8): The vulnerability of hard-coded default credentials in QSAN SANOS allows unauthenticated remote attackers to obtain…
CVE-2021-32534 — Critical (CVSS 9.8): QSAN SANOS factory reset function does not filter special parameters. Remote attackers can use this vulnerability to…
CVE-2021-32533 — Critical (CVSS 9.8): The QSAN SANOS setting page does not filter special parameters. Remote attackers can use this vulnerability to inject…
CVE-2021-32529 — Critical (CVSS 9.8): Command injection vulnerability in QSAN XEVO, SANOS allows remote unauthenticated attackers to execute arbitrary…
CVE-2021-32522 — Critical (CVSS 9.8): Improper restriction of excessive authentication attempts vulnerability in QSAN Storage Manager, XEVO, SANOS allows…
CVE-2021-32521 — High (CVSS 7.3): Use of MAC address as an authenticated password in QSAN Storage Manager, XEVO, SANOS allows local attackers to escalate…

All CVEs affecting Qsan Sanos →

Other CWE-916 vulnerabilities

CVE-2020-14516 — Critical (CVSS 10.0): In Rockwell Automation FactoryTalk Services Platform Versions 6.10.00 and 6.11.00, there is an issue with the…
CVE-2026-30789 — Critical (CVSS 9.8): Use of Password Hash With Insufficient Computational Effort, Improper Restriction of Excessive Authentication Attempts…
CVE-2024-5743 — Critical (CVSS 9.8): An attacker could exploit the 'Use of Password Hash With Insufficient Computational Effort' vulnerability in EveHome…
CVE-2021-36767 — Critical (CVSS 9.8): In Digi RealPort through 4.10.490, authentication relies on a challenge-response mechanism that gives access to the…
CVE-2019-17216 — Critical (CVSS 9.8): An issue was discovered on V-Zug Combi-Steam MSLQ devices before Ethernet R07 and before WLAN R05. Password…
CVE-2019-6563 — Critical (CVSS 9.8): Moxa IKS and EDS generate a predictable cookie calculated with an MD5 hash, allowing an attacker to capture the…

Browse all CWE-916 vulnerabilities →