How severe is CVE-2021-3113?

CVE-2021-3113 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-3113 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-2021-3113?

CVE-2021-3113 affects Netsia Seba+. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3113?

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-2021-3113 published?

CVE-2021-3113 was published on 2021-01-17 and last updated on 2026-06-17.

CVE-2021-3113

CVE-2021-3113 is a high-severity vulnerability in Netsia Seba+ with a CVSS 3.x base score of 7.5. 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-425.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-425
Affected product: Netsia Seba+
Published: 2021-01-17
Last modified: 2026-06-17

Description

Netsia SEBA+ through 0.16.1 build 70-e669dcd7 allows remote attackers to discover session cookies via a direct /session/list/allActiveSession request. For example, the attacker can discover the admin's cookie if the admin account happens to be logged in when the allActiveSession request occurs, and can then use that cookie immediately for admin access,

Frequently asked questions

What is CVE-2021-3113?: Netsia SEBA+ through 0.16.1 build 70-e669dcd7 allows remote attackers to discover session cookies via a direct /session/list/allActiveSession request. For example, the attacker can discover the admin's cookie if the admin account happens to be logged in when the allActiveSession request occurs, and can then use that cookie immediately for admin access,
How severe is CVE-2021-3113?: CVE-2021-3113 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-3113 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-2021-3113?: CVE-2021-3113 affects Netsia Seba+. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3113?: 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-2021-3113 published?: CVE-2021-3113 was published on 2021-01-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:netsia:seba\+:*:*:*:*:*:*:*:*

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