How severe is CVE-2012-5527?

CVE-2012-5527 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2012-5527 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-5527?

CVE-2012-5527 affects Claws-mail Vcalendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-5527?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-5527 published?

CVE-2012-5527 was published on 2019-11-25 and last updated on 2026-06-16.

CVE-2012-5527

CVE-2012-5527 is a medium-severity vulnerability in Claws-mail Vcalendar with a CVSS 3.x base score of 5.5. 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-522.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 1% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-522
Affected product: Claws-mail Vcalendar
Published: 2019-11-25
Last modified: 2026-06-16

Description

Claws Mail vCalendar plugin: credentials exposed on interface

Frequently asked questions

What is CVE-2012-5527?: Claws Mail vCalendar plugin: credentials exposed on interface
How severe is CVE-2012-5527?: CVE-2012-5527 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2012-5527 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-5527?: CVE-2012-5527 affects Claws-mail Vcalendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-5527?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-5527 published?: CVE-2012-5527 was published on 2019-11-25 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:claws-mail:vcalendar:-:*:*:*:*:*:*:*

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