How severe is CVE-2026-36340?

CVE-2026-36340 has a CVSS 3.x base score of 8.1, 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 none.

Is CVE-2026-36340 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-36340?

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.

Does CVE-2026-36340 have an EU (EUVD) identifier?

Yes. CVE-2026-36340 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26382.

When was CVE-2026-36340 published?

CVE-2026-36340 was published on 2026-04-30 and last updated on 2026-06-17.

CVE-2026-36340

CVE-2026-36340 is a high-severity vulnerability with a CVSS 3.x base score of 8.1. 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-94.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26382
Weakness: CWE-94
Published: 2026-04-30
Last modified: 2026-06-17

Description

An issue in Krayin CRM v.2.1.5 and fixed in v.2.1.6 allows a remote attacker to execute arbitrary code via the compose email function

Frequently asked questions

What is CVE-2026-36340?: An issue in Krayin CRM v.2.1.5 and fixed in v.2.1.6 allows a remote attacker to execute arbitrary code via the compose email function
How severe is CVE-2026-36340?: CVE-2026-36340 has a CVSS 3.x base score of 8.1, 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 none.
Is CVE-2026-36340 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-36340?: 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.
Does CVE-2026-36340 have an EU (EUVD) identifier?: Yes. CVE-2026-36340 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26382.
When was CVE-2026-36340 published?: CVE-2026-36340 was published on 2026-04-30 and last updated on 2026-06-17.

References

Other CWE-94 (Code Injection) vulnerabilities

CVE-2026-57624 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Blocksy Companion Pro <= 2.1.46 versions.
CVE-2026-10134 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read…
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CVE-2026-10561 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined…
CVE-2026-25470 — Critical (CVSS 10.0): Improper Control of Generation of Code ('Code Injection') vulnerability in ACPT ACPT (Pro) - Custom Post Types Plugin…
CVE-2026-48836 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Easy Invoice <= 2.1.19 versions.

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