How severe is CVE-2021-36981?

CVE-2021-36981 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-36981 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36981?

CVE-2021-36981 affects Sernet Verinice. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-36981?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-36981 published?

CVE-2021-36981 was published on 2021-08-31 and last updated on 2026-06-17.

CVE-2021-36981

CVE-2021-36981 is a high-severity vulnerability in Sernet Verinice with a CVSS 3.x base score of 8.8. 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-502.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Sernet Verinice
Published: 2021-08-31
Last modified: 2026-06-17

Description

In the server in SerNet verinice before 1.22.2, insecure Java deserialization allows remote authenticated attackers to execute arbitrary code.

Frequently asked questions

What is CVE-2021-36981?: In the server in SerNet verinice before 1.22.2, insecure Java deserialization allows remote authenticated attackers to execute arbitrary code.
How severe is CVE-2021-36981?: CVE-2021-36981 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-36981 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36981?: CVE-2021-36981 affects Sernet Verinice. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-36981?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-36981 published?: CVE-2021-36981 was published on 2021-08-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sernet:verinice:*:*:*:*:*:*:*:*

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