How severe is CVE-2023-26986?

CVE-2023-26986 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-26986 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26986?

CVE-2023-26986 affects Chinamobileltd Oa Mailbox Pc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-26986?

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-2023-26986 published?

CVE-2023-26986 was published on 2023-04-10 and last updated on 2026-06-17.

CVE-2023-26986

CVE-2023-26986 is a high-severity vulnerability in Chinamobileltd Oa Mailbox Pc with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Chinamobileltd Oa Mailbox Pc
Published: 2023-04-10
Last modified: 2026-06-17

Description

An issue in China Mobile OA Mailbox PC v2.9.23 allows remote attackers to execute arbitrary commands on a victim host via user interaction with a crafted EML file sent to their OA mailbox.

Frequently asked questions

What is CVE-2023-26986?: An issue in China Mobile OA Mailbox PC v2.9.23 allows remote attackers to execute arbitrary commands on a victim host via user interaction with a crafted EML file sent to their OA mailbox.
How severe is CVE-2023-26986?: CVE-2023-26986 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-26986 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26986?: CVE-2023-26986 affects Chinamobileltd Oa Mailbox Pc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-26986?: 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-2023-26986 published?: CVE-2023-26986 was published on 2023-04-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:chinamobileltd:oa_mailbox_pc:2.9.23:*:*:*:*:*:*:*